317593066541857 has 2 divisors, whose sum is σ = 317593066541858. Its totient is φ = 317593066541856.

The previous prime is 317593066541791. The next prime is 317593066541987. The reversal of 317593066541857 is 758145660395713.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204495605638416 + 113097460903441 = 14300196^2 + 10634729^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-317593066541857 is a prime.

It is not a weakly prime, because it can be changed into another prime (317593066541057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158796533270928 + 158796533270929.

It is an arithmetic number, because the mean of its divisors is an integer number (158796533270929).

Almost surely, 2^{317593066541857} is an apocalyptic number.

It is an amenable number.

317593066541857 is a deficient number, since it is larger than the sum of its proper divisors (1).

317593066541857 is an equidigital number, since it uses as much as digits as its factorization.

317593066541857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 571536000, while the sum is 70.

The spelling of 317593066541857 in words is "three hundred seventeen trillion, five hundred ninety-three billion, sixty-six million, five hundred forty-one thousand, eight hundred fifty-seven".