316130726557 has 2 divisors, whose sum is σ = 316130726558. Its totient is φ = 316130726556.

The previous prime is 316130726539. The next prime is 316130726591. The reversal of 316130726557 is 755627031613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 249726075076 + 66404651481 = 499726^2 + 257691^2 .

It is a cyclic number.

It is not a de Polignac number, because 316130726557 - 2¹⁵ = 316130693789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316130726507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158065363278 + 158065363279.

It is an arithmetic number, because the mean of its divisors is an integer number (158065363279).

Almost surely, 2^316130726557 is an apocalyptic number.

It is an amenable number.

316130726557 is a deficient number, since it is larger than the sum of its proper divisors (1).

316130726557 is an equidigital number, since it uses as much as digits as its factorization.

316130726557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 793800, while the sum is 46.

The spelling of 316130726557 in words is "three hundred sixteen billion, one hundred thirty million, seven hundred twenty-six thousand, five hundred fifty-seven".