76780658712 has 64 divisors (see below), whose sum is σ = 203296560480. Its totient is φ = 24081692672.

The previous prime is 76780658701. The next prime is 76780658737. The reversal of 76780658712 is 21785608767.

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, 1663498 + ... + 1709030.

Almost surely, 2^76780658712 is an apocalyptic number.

It is an amenable number.

76780658712 is an abundant number, since it is smaller than the sum of its proper divisors (126515901768).

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

76780658712 is a wasteful number, since it uses less digits than its factorization.

76780658712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49692 (or 49688 counting only the distinct ones).

The product of its (nonzero) digits is 7902720, while the sum is 57.

The spelling of 76780658712 in words is "seventy-six billion, seven hundred eighty million, six hundred fifty-eight thousand, seven hundred twelve".