318882325217 has 2 divisors, whose sum is σ = 318882325218. Its totient is φ = 318882325216.

The previous prime is 318882325199. The next prime is 318882325219. The reversal of 318882325217 is 712523288813.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 316536763456 + 2345561761 = 562616^2 + 48431^2 .

It is a cyclic number.

It is not a de Polignac number, because 318882325217 - 2²⁰ = 318881276641 is a prime.

Together with 318882325219, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (318882325219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159441162608 + 159441162609.

It is an arithmetic number, because the mean of its divisors is an integer number (159441162609).

Almost surely, 2^318882325217 is an apocalyptic number.

It is an amenable number.

318882325217 is a deficient number, since it is larger than the sum of its proper divisors (1).

318882325217 is an equidigital number, since it uses as much as digits as its factorization.

318882325217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1290240, while the sum is 50.

The spelling of 318882325217 in words is "three hundred eighteen billion, eight hundred eighty-two million, three hundred twenty-five thousand, two hundred seventeen".