57142291931 has 8 divisors (see below), whose sum is σ = 60159390720. Its totient is φ = 54126154152.

The previous prime is 57142291919. The next prime is 57142291937. The reversal of 57142291931 is 13919224175.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57142291931 is a prime.

It is a super-2 number, since 2×57142291931² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57142291937) 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, 116555 + ... + 357588.

It is an arithmetic number, because the mean of its divisors is an integer number (7519923840).

Almost surely, 2^57142291931 is an apocalyptic number.

57142291931 is a deficient number, since it is larger than the sum of its proper divisors (3017098789).

57142291931 is a wasteful number, since it uses less digits than its factorization.

57142291931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480505.

The product of its digits is 136080, while the sum is 44.

The spelling of 57142291931 in words is "fifty-seven billion, one hundred forty-two million, two hundred ninety-one thousand, nine hundred thirty-one".