57871993932 has 72 divisors (see below), whose sum is σ = 152143751760. Its totient is φ = 18533128320.

The previous prime is 57871993931. The next prime is 57871993969. The reversal of 57871993932 is 23939917875.

57871993932 is a `hidden beast` number, since 57 + 8 + 7 + 199 + 393 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 57871993932.

It is not an unprimeable number, because it can be changed into a prime (57871993931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 212007 + ... + 400862.

Almost surely, 2^57871993932 is an apocalyptic number.

It is an amenable number.

57871993932 is an abundant number, since it is smaller than the sum of its proper divisors (94271757828).

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

57871993932 is a wasteful number, since it uses less digits than its factorization.

57871993932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612983 (or 612978 counting only the distinct ones).

The product of its digits is 25719120, while the sum is 63.

The spelling of 57871993932 in words is "fifty-seven billion, eight hundred seventy-one million, nine hundred ninety-three thousand, nine hundred thirty-two".