57491749172 has 48 divisors (see below), whose sum is σ = 118324971072. Its totient is φ = 24096871680.

The previous prime is 57491749171. The next prime is 57491749177. The reversal of 57491749172 is 27194719475.

57491749172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57491749171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 492383 + ... + 597849.

It is an arithmetic number, because the mean of its divisors is an integer number (2465103564).

Almost surely, 2^57491749172 is an apocalyptic number.

57491749172 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

57491749172 is an abundant number, since it is smaller than the sum of its proper divisors (60833221900).

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

57491749172 is a wasteful number, since it uses less digits than its factorization.

57491749172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106448 (or 106446 counting only the distinct ones).

The product of its digits is 4445280, while the sum is 56.

The spelling of 57491749172 in words is "fifty-seven billion, four hundred ninety-one million, seven hundred forty-nine thousand, one hundred seventy-two".