76877561952 has 36 divisors (see below), whose sum is σ = 218620567620. Its totient is φ = 25625853888.

The previous prime is 76877561947. The next prime is 76877562001. The reversal of 76877561952 is 25916577867.

76877561952 is a `hidden beast` number, since 7 + 6 + 8 + 7 + 7 + 5 + 619 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 76877561952.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 133467702 + ... + 133468277.

It is an arithmetic number, because the mean of its divisors is an integer number (6072793545).

Almost surely, 2^76877561952 is an apocalyptic number.

76877561952 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

76877561952 is an abundant number, since it is smaller than the sum of its proper divisors (141743005668).

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

76877561952 is a wasteful number, since it uses less digits than its factorization.

76877561952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266935995 (or 266935984 counting only the distinct ones).

The product of its digits is 44452800, while the sum is 63.

The spelling of 76877561952 in words is "seventy-six billion, eight hundred seventy-seven million, five hundred sixty-one thousand, nine hundred fifty-two".