57045895920 has 400 divisors, whose sum is σ = 214685634240. Its totient is φ = 14038562304.

The previous prime is 57045895919. The next prime is 57045895943. The reversal of 57045895920 is 2959854075.

57045895920 is a `hidden beast` number, since 5 + 7 + 0 + 4 + 589 + 59 + 2 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 14234557 + ... + 14238563.

Almost surely, 2^57045895920 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 57045895920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107342817120).

57045895920 is an abundant number, since it is smaller than the sum of its proper divisors (157639738320).

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

57045895920 is a wasteful number, since it uses less digits than its factorization.

57045895920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4071 (or 4030 counting only the distinct ones).

The product of its (nonzero) digits is 4536000, while the sum is 54.

The spelling of 57045895920 in words is "fifty-seven billion, forty-five million, eight hundred ninety-five thousand, nine hundred twenty".