56877856980 has 384 divisors, whose sum is σ = 202405969920. Its totient is φ = 11639738880.

The previous prime is 56877856963. The next prime is 56877856993. The reversal of 56877856980 is 8965877865.

It is a super-2 number, since 2×56877856980² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 10634667 + ... + 10640013.

It is an arithmetic number, because the mean of its divisors is an integer number (527098880).

Almost surely, 2^56877856980 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 56877856980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101202984960).

56877856980 is an abundant number, since it is smaller than the sum of its proper divisors (145528112940).

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

56877856980 is a wasteful number, since it uses less digits than its factorization.

56877856980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5459 (or 5457 counting only the distinct ones).

The product of its (nonzero) digits is 203212800, while the sum is 69.

The spelling of 56877856980 in words is "fifty-six billion, eight hundred seventy-seven million, eight hundred fifty-six thousand, nine hundred eighty".