318668747627 has 2 divisors, whose sum is σ = 318668747628. Its totient is φ = 318668747626.

The previous prime is 318668747543. The next prime is 318668747653. The reversal of 318668747627 is 726747866813.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 318668747627 - 2¹⁴ = 318668731243 is a prime.

It is a super-2 number, since 2×318668747627² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (318668707627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159334373813 + 159334373814.

It is an arithmetic number, because the mean of its divisors is an integer number (159334373814).

Almost surely, 2^318668747627 is an apocalyptic number.

318668747627 is a deficient number, since it is larger than the sum of its proper divisors (1).

318668747627 is an equidigital number, since it uses as much as digits as its factorization.

318668747627 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113799168, while the sum is 65.

The spelling of 318668747627 in words is "three hundred eighteen billion, six hundred sixty-eight million, seven hundred forty-seven thousand, six hundred twenty-seven".