57939721431 has 8 divisors (see below), whose sum is σ = 77540148720. Its totient is φ = 38482887552.

The previous prime is 57939721409. The next prime is 57939721481. The reversal of 57939721431 is 13412793975.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57939721431 - 2¹⁰ = 57939720407 is a prime.

It is a super-2 number, since 2×57939721431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57939721481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35897410 + ... + 35899023.

It is an arithmetic number, because the mean of its divisors is an integer number (9692518590).

Almost surely, 2^57939721431 is an apocalyptic number.

57939721431 is a deficient number, since it is larger than the sum of its proper divisors (19600427289).

57939721431 is a wasteful number, since it uses less digits than its factorization.

57939721431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71796705.

The product of its digits is 1428840, while the sum is 51.

The spelling of 57939721431 in words is "fifty-seven billion, nine hundred thirty-nine million, seven hundred twenty-one thousand, four hundred thirty-one".