318651085138 has 16 divisors (see below), whose sum is σ = 498790892160. Its totient is φ = 152388362016.

The previous prime is 318651085121. The next prime is 318651085147. The reversal of 318651085138 is 831580156813.

It is a junction number, because it is equal to n+sod(n) for n = 318651085091 and 318651085100.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 508603 + ... + 946561.

It is an arithmetic number, because the mean of its divisors is an integer number (31174430760).

Almost surely, 2^318651085138 is an apocalyptic number.

318651085138 is a deficient number, since it is larger than the sum of its proper divisors (180139807022).

318651085138 is a wasteful number, since it uses less digits than its factorization.

318651085138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453801.

The product of its (nonzero) digits is 691200, while the sum is 49.

The spelling of 318651085138 in words is "three hundred eighteen billion, six hundred fifty-one million, eighty-five thousand, one hundred thirty-eight".