315622636313069 has 2 divisors, whose sum is σ = 315622636313070. Its totient is φ = 315622636313068.

The previous prime is 315622636312987. The next prime is 315622636313107. The reversal of 315622636313069 is 960313636226513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 292097837356900 + 23524798956169 = 17090870^2 + 4850237^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315622636313069 is a prime.

It is a super-2 number, since 2×315622636313069² (a number of 30 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315622636313669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157811318156534 + 157811318156535.

It is an arithmetic number, because the mean of its divisors is an integer number (157811318156535).

Almost surely, 2^{315622636313069} is an apocalyptic number.

It is an amenable number.

315622636313069 is a deficient number, since it is larger than the sum of its proper divisors (1).

315622636313069 is an equidigital number, since it uses as much as digits as its factorization.

315622636313069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18895680, while the sum is 56.

The spelling of 315622636313069 in words is "three hundred fifteen trillion, six hundred twenty-two billion, six hundred thirty-six million, three hundred thirteen thousand, sixty-nine".