31718574059 has 2 divisors, whose sum is σ = 31718574060. Its totient is φ = 31718574058.

The previous prime is 31718574031. The next prime is 31718574089. The reversal of 31718574059 is 95047581713.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31718574059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31718573998 and 31718574016.

It is not a weakly prime, because it can be changed into another prime (31718574089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15859287029 + 15859287030.

It is an arithmetic number, because the mean of its divisors is an integer number (15859287030).

Almost surely, 2^31718574059 is an apocalyptic number.

31718574059 is a deficient number, since it is larger than the sum of its proper divisors (1).

31718574059 is an equidigital number, since it uses as much as digits as its factorization.

31718574059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1058400, while the sum is 50.

The spelling of 31718574059 in words is "thirty-one billion, seven hundred eighteen million, five hundred seventy-four thousand, fifty-nine".