31674924557 has 2 divisors, whose sum is σ = 31674924558. Its totient is φ = 31674924556.

The previous prime is 31674924539. The next prime is 31674924563. The reversal of 31674924557 is 75542947613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28163888041 + 3511036516 = 167821^2 + 59254^2 .

It is a cyclic number.

It is not a de Polignac number, because 31674924557 - 2¹⁸ = 31674662413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31674924499 and 31674924508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31674924577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15837462278 + 15837462279.

It is an arithmetic number, because the mean of its divisors is an integer number (15837462279).

Almost surely, 2^31674924557 is an apocalyptic number.

It is an amenable number.

31674924557 is a deficient number, since it is larger than the sum of its proper divisors (1).

31674924557 is an equidigital number, since it uses as much as digits as its factorization.

31674924557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6350400, while the sum is 53.

The spelling of 31674924557 in words is "thirty-one billion, six hundred seventy-four million, nine hundred twenty-four thousand, five hundred fifty-seven".