57124664840 has 64 divisors (see below), whose sum is σ = 134438261760. Its totient is φ = 21804330240.

The previous prime is 57124664837. The next prime is 57124664903. The reversal of 57124664840 is 4846642175.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 313577 + ... + 461063.

It is an arithmetic number, because the mean of its divisors is an integer number (2100597840).

Almost surely, 2^57124664840 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 57124664840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67219130880).

57124664840 is an abundant number, since it is smaller than the sum of its proper divisors (77313596920).

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

57124664840 is a wasteful number, since it uses less digits than its factorization.

57124664840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147942 (or 147938 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 47.

The spelling of 57124664840 in words is "fifty-seven billion, one hundred twenty-four million, six hundred sixty-four thousand, eight hundred forty".