316256387224873 has 2 divisors, whose sum is σ = 316256387224874. Its totient is φ = 316256387224872.

The previous prime is 316256387224871. The next prime is 316256387224931. The reversal of 316256387224873 is 378422783652613.

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., 280687234360729 + 35569152864144 = 16753723^2 + 5963988^2 .

It is a cyclic number.

It is not a de Polignac number, because 316256387224873 - 2¹ = 316256387224871 is a prime.

It is a super-2 number, since 2×316256387224873² (a number of 30 digits) contains 22 as substring.

Together with 316256387224871, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 316256387224799 and 316256387224808.

It is not a weakly prime, because it can be changed into another prime (316256387224871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158128193612436 + 158128193612437.

It is an arithmetic number, because the mean of its divisors is an integer number (158128193612437).

Almost surely, 2^{316256387224873} is an apocalyptic number.

It is an amenable number.

316256387224873 is a deficient number, since it is larger than the sum of its proper divisors (1).

316256387224873 is an equidigital number, since it uses as much as digits as its factorization.

316256387224873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 487710720, while the sum is 67.

The spelling of 316256387224873 in words is "three hundred sixteen trillion, two hundred fifty-six billion, three hundred eighty-seven million, two hundred twenty-four thousand, eight hundred seventy-three".