So far all the info I've found on 777.
This number joins together the principles of the man, 700, the cosmic plans, 70, and their image in the Archetype, 7, according to R. Allendy. It is the universal organization, 7 + 7 + 7 = 21, the general evolution.
Represent the celestial perfection, 7, on the 3 plans of the manifestation: matter, astral (mental or soul) and spirit.
It is the number of the sacred work of the sons of God for the establishment of the Kingdom of God on the Earth, mainly for the period of the seventh millennium after Adam where it is written that Satan will be chained for thousand years.
In esotericism, 777 means that virgin spirits (those to which God gave the life with the mission to rise towards the Creator, until to absorb themselves again in Him) will know 777 incarnations during seven revolutions that the wave of life accomplishes around the seven globes of the seven world periods. The symbolism of this number is therefore the ascension of the soul through the physical body.
According to the tradition of Himalayan masters, 777 is the number of the celestial man and symbolizes the transmutation which takes place at the time where the man becomes conscious of the necessity to cover the path of initiation, and that he perceives, even of an elementary manner, that the goal is in God.
The purity - does not father and is not fathered.
http://www.ridingthebeast.com/numbers/nu777.phpAleister Crowley in his book "777",stands for the Qlippoth, a Kabbalistic concept,when used in the occult ,777 would stand for the assertion of mortality over divinity.
http://www.donaldtyson.com/answer10.html