313925622817 has 2 divisors, whose sum is σ = 313925622818. Its totient is φ = 313925622816.

The previous prime is 313925622811. The next prime is 313925622847. The reversal of 313925622817 is 718226529313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 279422188816 + 34503434001 = 528604^2 + 185751^2 .

It is a cyclic number.

It is not a de Polignac number, because 313925622817 - 2³ = 313925622809 is a prime.

It is a super-2 number, since 2×313925622817² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (313925622811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156962811408 + 156962811409.

It is an arithmetic number, because the mean of its divisors is an integer number (156962811409).

Almost surely, 2^313925622817 is an apocalyptic number.

It is an amenable number.

313925622817 is a deficient number, since it is larger than the sum of its proper divisors (1).

313925622817 is an equidigital number, since it uses as much as digits as its factorization.

313925622817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 49.

The spelling of 313925622817 in words is "three hundred thirteen billion, nine hundred twenty-five million, six hundred twenty-two thousand, eight hundred seventeen".