776656361422072 has 16 divisors (see below), whose sum is σ = 1469840310169560. Its totient is φ = 384698945376864.

The previous prime is 776656361422033. The next prime is 776656361422087. The reversal of 776656361422072 is 270224163656677.

It is a junction number, because it is equal to n+sod(n) for n = 776656361421995 and 776656361422013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 453654415863 + ... + 453654417574.

Almost surely, 2^{776656361422072} is an apocalyptic number.

It is an amenable number.

776656361422072 is a deficient number, since it is larger than the sum of its proper divisors (693183948747488).

776656361422072 is a wasteful number, since it uses less digits than its factorization.

776656361422072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907308833550 (or 907308833546 counting only the distinct ones).

The product of its (nonzero) digits is 213373440, while the sum is 64.

The spelling of 776656361422072 in words is "seven hundred seventy-six trillion, six hundred fifty-six billion, three hundred sixty-one million, four hundred twenty-two thousand, seventy-two".