318627345791 has 2 divisors, whose sum is σ = 318627345792. Its totient is φ = 318627345790.

The previous prime is 318627345667. The next prime is 318627345847. The reversal of 318627345791 is 197543726813.

It is an a-pointer prime, because the next prime (318627345847) can be obtained adding 318627345791 to its sum of digits (56).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 318627345791 - 2²⁶ = 318560236927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (318627345991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159313672895 + 159313672896.

It is an arithmetic number, because the mean of its divisors is an integer number (159313672896).

Almost surely, 2^318627345791 is an apocalyptic number.

318627345791 is a deficient number, since it is larger than the sum of its proper divisors (1).

318627345791 is an equidigital number, since it uses as much as digits as its factorization.

318627345791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7620480, while the sum is 56.

The spelling of 318627345791 in words is "three hundred eighteen billion, six hundred twenty-seven million, three hundred forty-five thousand, seven hundred ninety-one".