76887081504 has 72 divisors (see below), whose sum is σ = 218698739532. Its totient is φ = 25623037440.

The previous prime is 76887081421. The next prime is 76887081529. The reversal of 76887081504 is 40518078867.

It is a happy number.

76887081504 is a `hidden beast` number, since 7 + 68 + 8 + 70 + 8 + 1 + 504 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 66125093904 + 10761987600 = 257148^2 + 103740^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1301962 + ... + 1359734.

Almost surely, 2^76887081504 is an apocalyptic number.

It is an amenable number.

76887081504 is an abundant number, since it is smaller than the sum of its proper divisors (141811658028).

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

76887081504 is a wasteful number, since it uses less digits than its factorization.

76887081504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62410 (or 62399 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 54.

The spelling of 76887081504 in words is "seventy-six billion, eight hundred eighty-seven million, eighty-one thousand, five hundred four".