313718064838169 has 2 divisors, whose sum is σ = 313718064838170. Its totient is φ = 313718064838168.

The previous prime is 313718064838159. The next prime is 313718064838207. The reversal of 313718064838169 is 961838460817313.

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., 306972720885769 + 6745343952400 = 17520637^2 + 2597180^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313718064838169 is a prime.

It is a super-2 number, since 2×313718064838169² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 313718064838099 and 313718064838108.

It is not a weakly prime, because it can be changed into another prime (313718064838159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156859032419084 + 156859032419085.

It is an arithmetic number, because the mean of its divisors is an integer number (156859032419085).

Almost surely, 2^{313718064838169} is an apocalyptic number.

It is an amenable number.

313718064838169 is a deficient number, since it is larger than the sum of its proper divisors (1).

313718064838169 is an equidigital number, since it uses as much as digits as its factorization.

313718064838169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 125411328, while the sum is 68.

The spelling of 313718064838169 in words is "three hundred thirteen trillion, seven hundred eighteen billion, sixty-four million, eight hundred thirty-eight thousand, one hundred sixty-nine".