316450771261 has 2 divisors, whose sum is σ = 316450771262. Its totient is φ = 316450771260.

The previous prime is 316450771237. The next prime is 316450771271. The reversal of 316450771261 is 162177054613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 188568720025 + 127882051236 = 434245^2 + 357606^2 .

It is a cyclic number.

It is not a de Polignac number, because 316450771261 - 2⁵ = 316450771229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316450771271) 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 as a sum of consecutive naturals, namely, 158225385630 + 158225385631.

It is an arithmetic number, because the mean of its divisors is an integer number (158225385631).

Almost surely, 2^316450771261 is an apocalyptic number.

It is an amenable number.

316450771261 is a deficient number, since it is larger than the sum of its proper divisors (1).

316450771261 is an equidigital number, since it uses as much as digits as its factorization.

316450771261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 316450771261 in words is "three hundred sixteen billion, four hundred fifty million, seven hundred seventy-one thousand, two hundred sixty-one".