318877174672 has 80 divisors (see below), whose sum is σ = 719215534720. Its totient is φ = 134135046144.

The previous prime is 318877174661. The next prime is 318877174757. The reversal of 318877174672 is 276471778813.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 318877174672.

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, 2001904 + ... + 2155312.

It is an arithmetic number, because the mean of its divisors is an integer number (8990194184).

Almost surely, 2^318877174672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 318877174672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359607767360).

318877174672 is an abundant number, since it is smaller than the sum of its proper divisors (400338360048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

318877174672 is a wasteful number, since it uses less digits than its factorization.

318877174672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153768 (or 153762 counting only the distinct ones).

The product of its digits is 22127616, while the sum is 61.

The spelling of 318877174672 in words is "three hundred eighteen billion, eight hundred seventy-seven million, one hundred seventy-four thousand, six hundred seventy-two".