317531294869 has 2 divisors, whose sum is σ = 317531294870. Its totient is φ = 317531294868.

The previous prime is 317531294863. The next prime is 317531294887. The reversal of 317531294869 is 968492135713.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 275270214244 + 42261080625 = 524662^2 + 205575^2 .

It is a cyclic number.

It is not a de Polignac number, because 317531294869 - 2⁹ = 317531294357 is a prime.

It is a super-2 number, since 2×317531294869² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317531294863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158765647434 + 158765647435.

It is an arithmetic number, because the mean of its divisors is an integer number (158765647435).

Almost surely, 2^317531294869 is an apocalyptic number.

It is an amenable number.

317531294869 is a deficient number, since it is larger than the sum of its proper divisors (1).

317531294869 is an equidigital number, since it uses as much as digits as its factorization.

317531294869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9797760, while the sum is 58.

The spelling of 317531294869 in words is "three hundred seventeen billion, five hundred thirty-one million, two hundred ninety-four thousand, eight hundred sixty-nine".