318718254901 has 2 divisors, whose sum is σ = 318718254902. Its totient is φ = 318718254900.

The previous prime is 318718254889. The next prime is 318718254941. The reversal of 318718254901 is 109452817813.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190618686801 + 128099568100 = 436599^2 + 357910^2 .

It is a cyclic number.

It is not a de Polignac number, because 318718254901 - 2⁷ = 318718254773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (318718254941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159359127450 + 159359127451.

It is an arithmetic number, because the mean of its divisors is an integer number (159359127451).

Almost surely, 2^318718254901 is an apocalyptic number.

It is an amenable number.

318718254901 is a deficient number, since it is larger than the sum of its proper divisors (1).

318718254901 is an equidigital number, since it uses as much as digits as its factorization.

318718254901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 49.

The spelling of 318718254901 in words is "three hundred eighteen billion, seven hundred eighteen million, two hundred fifty-four thousand, nine hundred one".