57495991872 has 224 divisors, whose sum is σ = 170028656640. Its totient is φ = 16997713920.

The previous prime is 57495991843. The next prime is 57495991939. The reversal of 57495991872 is 27819959475.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39407079 + ... + 39408537.

Almost surely, 2^57495991872 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 57495991872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85014328320).

57495991872 is an abundant number, since it is smaller than the sum of its proper divisors (112532664768).

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

57495991872 is a wasteful number, since it uses less digits than its factorization.

57495991872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1929 (or 1919 counting only the distinct ones).

The product of its digits is 57153600, while the sum is 66.

The spelling of 57495991872 in words is "fifty-seven billion, four hundred ninety-five million, nine hundred ninety-one thousand, eight hundred seventy-two".