76995773864 has 16 divisors (see below), whose sum is σ = 147888224820. Its totient is φ = 37558913920.

The previous prime is 76995773819. The next prime is 76995773887. The reversal of 76995773864 is 46837759967.

It can be written as a sum of positive squares in 2 ways, for example, as 76475477764 + 520296100 = 276542^2 + 22810^2 .

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, 117371279 + ... + 117371934.

Almost surely, 2^76995773864 is an apocalyptic number.

It is an amenable number.

76995773864 is a deficient number, since it is larger than the sum of its proper divisors (70892450956).

76995773864 is a wasteful number, since it uses less digits than its factorization.

76995773864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234743260 (or 234743256 counting only the distinct ones).

The product of its digits is 480090240, while the sum is 71.

The spelling of 76995773864 in words is "seventy-six billion, nine hundred ninety-five million, seven hundred seventy-three thousand, eight hundred sixty-four".