57535865388 has 72 divisors (see below), whose sum is σ = 147963526256. Its totient is φ = 18846172800.

The previous prime is 57535865377. The next prime is 57535865389. The reversal of 57535865388 is 88356853575.

57535865388 is a `hidden beast` number, since 5 + 7 + 535 + 8 + 65 + 38 + 8 = 666.

57535865388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (57535865389) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2388243 + ... + 2412213.

Almost surely, 2^57535865388 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 57535865388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73981763128).

57535865388 is an abundant number, since it is smaller than the sum of its proper divisors (90427660868).

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

57535865388 is a wasteful number, since it uses less digits than its factorization.

57535865388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25135 (or 25130 counting only the distinct ones).

The product of its digits is 120960000, while the sum is 63.

The spelling of 57535865388 in words is "fifty-seven billion, five hundred thirty-five million, eight hundred sixty-five thousand, three hundred eighty-eight".