12717816317 has 2 divisors, whose sum is σ = 12717816318. Its totient is φ = 12717816316.

The previous prime is 12717816289. The next prime is 12717816359. The reversal of 12717816317 is 71361871721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11141646916 + 1576169401 = 105554^2 + 39701^2 .

It is a cyclic number.

It is not a de Polignac number, because 12717816317 - 2²⁰ = 12716767741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12717816367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6358908158 + 6358908159.

It is an arithmetic number, because the mean of its divisors is an integer number (6358908159).

Almost surely, 2^12717816317 is an apocalyptic number.

It is an amenable number.

12717816317 is a deficient number, since it is larger than the sum of its proper divisors (1).

12717816317 is an equidigital number, since it uses as much as digits as its factorization.

12717816317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 98784, while the sum is 44.

The spelling of 12717816317 in words is "twelve billion, seven hundred seventeen million, eight hundred sixteen thousand, three hundred seventeen".