57043457431 has 2 divisors, whose sum is σ = 57043457432. Its totient is φ = 57043457430.

The previous prime is 57043457369. The next prime is 57043457459. The reversal of 57043457431 is 13475434075.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57043457431 - 2²¹ = 57041360279 is a prime.

It is a super-2 number, since 2×57043457431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57043457231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28521728715 + 28521728716.

It is an arithmetic number, because the mean of its divisors is an integer number (28521728716).

Almost surely, 2^57043457431 is an apocalyptic number.

57043457431 is a deficient number, since it is larger than the sum of its proper divisors (1).

57043457431 is an equidigital number, since it uses as much as digits as its factorization.

57043457431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 705600, while the sum is 43.

The spelling of 57043457431 in words is "fifty-seven billion, forty-three million, four hundred fifty-seven thousand, four hundred thirty-one".