317593066541881 has 9 divisors (see below), whose sum is σ = 343902802211181. Its totient is φ = 293162616800352.

The previous prime is 317593066541857. The next prime is 317593066541987. The reversal of 317593066541881 is 188145660395713.

The square root of 317593066541881 is 17821141.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 77860487651881 + 239732578890000 = 8823859^2 + 15483300^2 .

It is not a de Polignac number, because 317593066541881 - 2³⁹ = 317043310727993 is a prime.

It is a super-2 number, since 2×317593066541881² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (317593066541081) 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 in 8 ways as a sum of consecutive naturals, for example, 230989405 + ... + 232360261.

It is an arithmetic number, because the mean of its divisors is an integer number (38211422467909).

Almost surely, 2^{317593066541881} is an apocalyptic number.

317593066541881 is the 17821141-st square number.

317593066541881 is the 8910571-st centered octagonal number.

It is an amenable number.

317593066541881 is a deficient number, since it is larger than the sum of its proper divisors (26309735669300).

317593066541881 is an frugal number, since it uses more digits than its factorization.

317593066541881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2741740 (or 1370870 counting only the distinct ones).

The product of its (nonzero) digits is 130636800, while the sum is 67.

The spelling of 317593066541881 in words is "three hundred seventeen trillion, five hundred ninety-three billion, sixty-six million, five hundred forty-one thousand, eight hundred eighty-one".