31794548017 has 2 divisors, whose sum is σ = 31794548018. Its totient is φ = 31794548016.

The previous prime is 31794547957. The next prime is 31794548047. The reversal of 31794548017 is 71084549713.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26894688016 + 4899860001 = 163996^2 + 69999^2 .

It is a cyclic number.

It is not a de Polignac number, because 31794548017 - 2²³ = 31786159409 is a prime.

It is not a weakly prime, because it can be changed into another prime (31794548047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15897274008 + 15897274009.

It is an arithmetic number, because the mean of its divisors is an integer number (15897274009).

Almost surely, 2^31794548017 is an apocalyptic number.

It is an amenable number.

31794548017 is a deficient number, since it is larger than the sum of its proper divisors (1).

31794548017 is an equidigital number, since it uses as much as digits as its factorization.

31794548017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 31794548017 in words is "thirty-one billion, seven hundred ninety-four million, five hundred forty-eight thousand, seventeen".