76559966868 has 96 divisors (see below), whose sum is σ = 224420410368. Its totient is φ = 19733875200.

The previous prime is 76559966831. The next prime is 76559966957. The reversal of 76559966868 is 86866995567.

It is a super-2 number, since 2×76559966868² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 76559966868.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 195205 + ... + 437292.

It is an arithmetic number, because the mean of its divisors is an integer number (2337712608).

Almost surely, 2^76559966868 is an apocalyptic number.

It is an amenable number.

76559966868 is an abundant number, since it is smaller than the sum of its proper divisors (147860443500).

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

76559966868 is a wasteful number, since it uses less digits than its factorization.

76559966868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632653 (or 632651 counting only the distinct ones).

The product of its digits is 1175731200, while the sum is 75.

The spelling of 76559966868 in words is "seventy-six billion, five hundred fifty-nine million, nine hundred sixty-six thousand, eight hundred sixty-eight".