57457142920 has 64 divisors (see below), whose sum is σ = 131994878400. Its totient is φ = 22503072000.

The previous prime is 57457142879. The next prime is 57457142921. The reversal of 57457142920 is 2924175475.

It is a super-2 number, since 2×57457142920² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57457142921) 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, 543862 + ... + 640858.

It is an arithmetic number, because the mean of its divisors is an integer number (2062419975).

Almost surely, 2^57457142920 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 57457142920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65997439200).

57457142920 is an abundant number, since it is smaller than the sum of its proper divisors (74537735480).

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

57457142920 is a wasteful number, since it uses less digits than its factorization.

57457142920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97318 (or 97314 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 46.

The spelling of 57457142920 in words is "fifty-seven billion, four hundred fifty-seven million, one hundred forty-two thousand, nine hundred twenty".