318666868863 has 24 divisors (see below), whose sum is σ = 494315396352. Its totient is φ = 182074508784.

The previous prime is 318666868847. The next prime is 318666868879. The reversal of 318666868863 is 368868666813.

It is an interprime number because it is at equal distance from previous prime (318666868847) and next prime (318666868879).

It is not a de Polignac number, because 318666868863 - 2⁴ = 318666868847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318666868763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1213306 + ... + 1452392.

It is an arithmetic number, because the mean of its divisors is an integer number (20596474848).

Almost surely, 2^318666868863 is an apocalyptic number.

318666868863 is a deficient number, since it is larger than the sum of its proper divisors (175648527489).

318666868863 is a wasteful number, since it uses less digits than its factorization.

318666868863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248171 (or 248164 counting only the distinct ones).

The product of its digits is 286654464, while the sum is 69.

The spelling of 318666868863 in words is "three hundred eighteen billion, six hundred sixty-six million, eight hundred sixty-eight thousand, eight hundred sixty-three".