56877456688 has 80 divisors (see below), whose sum is σ = 126788273920. Its totient is φ = 24498194688.

The previous prime is 56877456679. The next prime is 56877456697. The reversal of 56877456688 is 88665477865.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (56877456679) and next prime (56877456697).

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 15 ways as a sum of consecutive naturals, for example, 157381 + ... + 372187.

It is an arithmetic number, because the mean of its divisors is an integer number (1584853424).

Almost surely, 2^56877456688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56877456688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63394136960).

56877456688 is an abundant number, since it is smaller than the sum of its proper divisors (69910817232).

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

56877456688 is a wasteful number, since it uses less digits than its factorization.

56877456688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214914 (or 214908 counting only the distinct ones).

The product of its digits is 541900800, while the sum is 70.

The spelling of 56877456688 in words is "fifty-six billion, eight hundred seventy-seven million, four hundred fifty-six thousand, six hundred eighty-eight".