318625278623 has 2 divisors, whose sum is σ = 318625278624. Its totient is φ = 318625278622.

The previous prime is 318625278581. The next prime is 318625278641. The reversal of 318625278623 is 326872526813.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-318625278623 is a prime.

It is a super-2 number, since 2×318625278623² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (318625268623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159312639311 + 159312639312.

It is an arithmetic number, because the mean of its divisors is an integer number (159312639312).

Almost surely, 2^318625278623 is an apocalyptic number.

318625278623 is a deficient number, since it is larger than the sum of its proper divisors (1).

318625278623 is an equidigital number, since it uses as much as digits as its factorization.

318625278623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5806080, while the sum is 53.

The spelling of 318625278623 in words is "three hundred eighteen billion, six hundred twenty-five million, two hundred seventy-eight thousand, six hundred twenty-three".