318929991696 has 120 divisors (see below), whose sum is σ = 905484438144. Its totient is φ = 104780847360.

The previous prime is 318929991683. The next prime is 318929991701. The reversal of 318929991696 is 696199929813.

It is a happy number.

318929991696 is a `hidden beast` number, since 318 + 9 + 299 + 9 + 16 + 9 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2982841 + ... + 3087911.

Almost surely, 2^318929991696 is an apocalyptic number.

318929991696 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 318929991696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (452742219072).

318929991696 is an abundant number, since it is smaller than the sum of its proper divisors (586554446448).

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

318929991696 is a wasteful number, since it uses less digits than its factorization.

318929991696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105389 (or 105380 counting only the distinct ones).

The product of its digits is 102036672, while the sum is 72.

The spelling of 318929991696 in words is "three hundred eighteen billion, nine hundred twenty-nine million, nine hundred ninety-one thousand, six hundred ninety-six".