57994442731 has 2 divisors, whose sum is σ = 57994442732. Its totient is φ = 57994442730.

The previous prime is 57994442689. The next prime is 57994442747. The reversal of 57994442731 is 13724449975.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57994442731 - 2¹³ = 57994434539 is a prime.

It is a super-2 number, since 2×57994442731² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57994442771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28997221365 + 28997221366.

It is an arithmetic number, because the mean of its divisors is an integer number (28997221366).

Almost surely, 2^57994442731 is an apocalyptic number.

57994442731 is a deficient number, since it is larger than the sum of its proper divisors (1).

57994442731 is an equidigital number, since it uses as much as digits as its factorization.

57994442731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7620480, while the sum is 55.

The spelling of 57994442731 in words is "fifty-seven billion, nine hundred ninety-four million, four hundred forty-two thousand, seven hundred thirty-one".