317936394617 has 2 divisors, whose sum is σ = 317936394618. Its totient is φ = 317936394616.

The previous prime is 317936394583. The next prime is 317936394667. The reversal of 317936394617 is 716493639713.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 264714366016 + 53222028601 = 514504^2 + 230699^2 .

It is a cyclic number.

It is not a de Polignac number, because 317936394617 - 2⁸ = 317936394361 is a prime.

It is not a weakly prime, because it can be changed into another prime (317936394667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158968197308 + 158968197309.

It is an arithmetic number, because the mean of its divisors is an integer number (158968197309).

Almost surely, 2^317936394617 is an apocalyptic number.

It is an amenable number.

317936394617 is a deficient number, since it is larger than the sum of its proper divisors (1).

317936394617 is an equidigital number, since it uses as much as digits as its factorization.

317936394617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15431472, while the sum is 59.

The spelling of 317936394617 in words is "three hundred seventeen billion, nine hundred thirty-six million, three hundred ninety-four thousand, six hundred seventeen".