317118664609 has 2 divisors, whose sum is σ = 317118664610. Its totient is φ = 317118664608.

The previous prime is 317118664591. The next prime is 317118664651. The reversal of 317118664609 is 906466811713.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 170153775009 + 146964889600 = 412497^2 + 383360^2 .

It is an emirp because it is prime and its reverse (906466811713) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 317118664609 - 2²¹ = 317116567457 is a prime.

It is not a weakly prime, because it can be changed into another prime (317118664669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158559332304 + 158559332305.

It is an arithmetic number, because the mean of its divisors is an integer number (158559332305).

Almost surely, 2^317118664609 is an apocalyptic number.

It is an amenable number.

317118664609 is a deficient number, since it is larger than the sum of its proper divisors (1).

317118664609 is an equidigital number, since it uses as much as digits as its factorization.

317118664609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The spelling of 317118664609 in words is "three hundred seventeen billion, one hundred eighteen million, six hundred sixty-four thousand, six hundred nine".