57407552388 has 96 divisors (see below), whose sum is σ = 154698096000. Its totient is φ = 18388218240.

The previous prime is 57407552387. The next prime is 57407552393. The reversal of 57407552388 is 88325570475.

57407552388 is a `hidden beast` number, since 5 + 7 + 4 + 0 + 7 + 552 + 3 + 88 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (57407552387) 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 31 ways as a sum of consecutive naturals, for example, 617418 + ... + 704286.

It is an arithmetic number, because the mean of its divisors is an integer number (1611438500).

Almost surely, 2^57407552388 is an apocalyptic number.

57407552388 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57407552388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77349048000).

57407552388 is an abundant number, since it is smaller than the sum of its proper divisors (97290543612).

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

57407552388 is a wasteful number, since it uses less digits than its factorization.

57407552388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87122 (or 87114 counting only the distinct ones).

The product of its (nonzero) digits is 9408000, while the sum is 54.

The spelling of 57407552388 in words is "fifty-seven billion, four hundred seven million, five hundred fifty-two thousand, three hundred eighty-eight".