57660262780 has 12 divisors (see below), whose sum is σ = 121086551880. Its totient is φ = 23064105104.

The previous prime is 57660262739. The next prime is 57660262801. The reversal of 57660262780 is 8726206675.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1441506550 + ... + 1441506589.

It is an arithmetic number, because the mean of its divisors is an integer number (10090545990).

Almost surely, 2^57660262780 is an apocalyptic number.

It is an amenable number.

57660262780 is an abundant number, since it is smaller than the sum of its proper divisors (63426289100).

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

57660262780 is a wasteful number, since it uses less digits than its factorization.

57660262780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2883013148 (or 2883013146 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 57660262780 in words is "fifty-seven billion, six hundred sixty million, two hundred sixty-two thousand, seven hundred eighty".