57126745172 has 12 divisors (see below), whose sum is σ = 114253490400. Its totient is φ = 24482890776.

The previous prime is 57126745171. The next prime is 57126745187. The reversal of 57126745172 is 27154762175.

57126745172 is an admirable number.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57126745171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1020120422 + ... + 1020120477.

It is an arithmetic number, because the mean of its divisors is an integer number (9521124200).

Almost surely, 2^57126745172 is an apocalyptic number.

It is an amenable number.

57126745172 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

57126745172 is a wasteful number, since it uses less digits than its factorization.

57126745172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2040240910 (or 2040240908 counting only the distinct ones).

The product of its digits is 823200, while the sum is 47.

The spelling of 57126745172 in words is "fifty-seven billion, one hundred twenty-six million, seven hundred forty-five thousand, one hundred seventy-two".