776842570868 has 48 divisors (see below), whose sum is σ = 1691999447040. Its totient is φ = 303869263104.

The previous prime is 776842570849. The next prime is 776842570877. The reversal of 776842570868 is 868075248677.

It is a junction number, because it is equal to n+sod(n) for n = 776842570798 and 776842570807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11957396 + ... + 12022187.

It is an arithmetic number, because the mean of its divisors is an integer number (35249988480).

Almost surely, 2^776842570868 is an apocalyptic number.

It is an amenable number.

776842570868 is an abundant number, since it is smaller than the sum of its proper divisors (915156876172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

776842570868 is a wasteful number, since it uses less digits than its factorization.

776842570868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23979696 (or 23979694 counting only the distinct ones).

The product of its (nonzero) digits is 252887040, while the sum is 68.

The spelling of 776842570868 in words is "seven hundred seventy-six billion, eight hundred forty-two million, five hundred seventy thousand, eight hundred sixty-eight".