57209231432 has 8 divisors (see below), whose sum is σ = 107267308950. Its totient is φ = 28604615712.

The previous prime is 57209231399. The next prime is 57209231441. The reversal of 57209231432 is 23413290275.

57209231432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 56688752836 + 520478596 = 238094^2 + 22814^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×57209231432² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3575576957 + ... + 3575576972.

Almost surely, 2^57209231432 is an apocalyptic number.

It is an amenable number.

57209231432 is a deficient number, since it is larger than the sum of its proper divisors (50058077518).

57209231432 is a wasteful number, since it uses less digits than its factorization.

57209231432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7151153935 (or 7151153931 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 38.

The spelling of 57209231432 in words is "fifty-seven billion, two hundred nine million, two hundred thirty-one thousand, four hundred thirty-two".