77777693076 has 48 divisors (see below), whose sum is σ = 181803400128. Its totient is φ = 25879929600.

The previous prime is 77777693041. The next prime is 77777693087. The reversal of 77777693076 is 67039677777.

It is a junction number, because it is equal to n+sod(n) for n = 77777692998 and 77777693016.

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, 29538256 + ... + 29540888.

It is an arithmetic number, because the mean of its divisors is an integer number (3787570836).

Almost surely, 2^77777693076 is an apocalyptic number.

It is an amenable number.

77777693076 is an abundant number, since it is smaller than the sum of its proper divisors (104025707052).

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

77777693076 is a wasteful number, since it uses less digits than its factorization.

77777693076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6072 (or 6070 counting only the distinct ones).

The product of its (nonzero) digits is 114354828, while the sum is 66.

The spelling of 77777693076 in words is "seventy-seven billion, seven hundred seventy-seven million, six hundred ninety-three thousand, seventy-six".