57085931940 has 96 divisors (see below), whose sum is σ = 161295926400. Its totient is φ = 15084804096.

The previous prime is 57085931887. The next prime is 57085931941. The reversal of 57085931940 is 4913958075.

It is not an unprimeable number, because it can be changed into a prime (57085931941) 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, 3863647 + ... + 3878393.

It is an arithmetic number, because the mean of its divisors is an integer number (1680165900).

Almost surely, 2^57085931940 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 57085931940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80647963200).

57085931940 is an abundant number, since it is smaller than the sum of its proper divisors (104209994460).

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

57085931940 is a wasteful number, since it uses less digits than its factorization.

57085931940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15341 (or 15339 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 51.

The spelling of 57085931940 in words is "fifty-seven billion, eighty-five million, nine hundred thirty-one thousand, nine hundred forty".