57122610972 has 96 divisors (see below), whose sum is σ = 153788544000. Its totient is φ = 16164782592.

The previous prime is 57122610929. The next prime is 57122610977. The reversal of 57122610972 is 27901622175.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57122610977) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4486888 + ... + 4499600.

It is an arithmetic number, because the mean of its divisors is an integer number (1601964000).

Almost surely, 2^57122610972 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 57122610972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76894272000).

57122610972 is an abundant number, since it is smaller than the sum of its proper divisors (96665933028).

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

57122610972 is a wasteful number, since it uses less digits than its factorization.

57122610972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13235 (or 13233 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 42.

The spelling of 57122610972 in words is "fifty-seven billion, one hundred twenty-two million, six hundred ten thousand, nine hundred seventy-two".