57431278872 has 96 divisors (see below), whose sum is σ = 178614072000. Its totient is φ = 16487444160.

The previous prime is 57431278871. The next prime is 57431278907. The reversal of 57431278872 is 27887213475.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57431278871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1893222 + ... + 1923317.

It is an arithmetic number, because the mean of its divisors is an integer number (1860563250).

Almost surely, 2^57431278872 is an apocalyptic number.

It is an amenable number.

57431278872 is an abundant number, since it is smaller than the sum of its proper divisors (121182793128).

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

57431278872 is a wasteful number, since it uses less digits than its factorization.

57431278872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3816581 (or 3816574 counting only the distinct ones).

The product of its digits is 5268480, while the sum is 54.

The spelling of 57431278872 in words is "fifty-seven billion, four hundred thirty-one million, two hundred seventy-eight thousand, eight hundred seventy-two".