76864949952 has 112 divisors (see below), whose sum is σ = 237168537600. Its totient is φ = 21961395456.

The previous prime is 76864949929. The next prime is 76864949971. The reversal of 76864949952 is 25994946867.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×76864949952² (a number of 23 digits) contains 22 as substring.

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, 517728 + ... + 649439.

Almost surely, 2^76864949952 is an apocalyptic number.

It is an amenable number.

76864949952 is an abundant number, since it is smaller than the sum of its proper divisors (160303587648).

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

76864949952 is a wasteful number, since it uses less digits than its factorization.

76864949952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167203 (or 1167179 counting only the distinct ones).

The product of its digits is 235146240, while the sum is 69.

The spelling of 76864949952 in words is "seventy-six billion, eight hundred sixty-four million, nine hundred forty-nine thousand, nine hundred fifty-two".