76987613872 has 20 divisors (see below), whose sum is σ = 160637617840. Its totient is φ = 35532744768.

The previous prime is 76987613861. The next prime is 76987613881. The reversal of 76987613872 is 27831678967.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185066172 + ... + 185066587.

It is an arithmetic number, because the mean of its divisors is an integer number (8031880892).

Almost surely, 2^76987613872 is an apocalyptic number.

It is an amenable number.

76987613872 is an abundant number, since it is smaller than the sum of its proper divisors (83650003968).

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

76987613872 is a wasteful number, since it uses less digits than its factorization.

76987613872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370132780 (or 370132774 counting only the distinct ones).

The product of its digits is 42674688, while the sum is 64.

The spelling of 76987613872 in words is "seventy-six billion, nine hundred eighty-seven million, six hundred thirteen thousand, eight hundred seventy-two".