318877161218 has 32 divisors (see below), whose sum is σ = 597286960128. Its totient is φ = 124040926800.

The previous prime is 318877161181. The next prime is 318877161263. The reversal of 318877161218 is 812161778813.

It is a self number, because there is not a number n which added to its sum of digits gives 318877161218.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1543580 + ... + 1737927.

It is an arithmetic number, because the mean of its divisors is an integer number (18665217504).

Almost surely, 2^318877161218 is an apocalyptic number.

318877161218 is a deficient number, since it is larger than the sum of its proper divisors (278409798910).

318877161218 is a wasteful number, since it uses less digits than its factorization.

318877161218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3282158.

The product of its digits is 903168, while the sum is 53.

The spelling of 318877161218 in words is "three hundred eighteen billion, eight hundred seventy-seven million, one hundred sixty-one thousand, two hundred eighteen".