113831651808 has 384 divisors, whose sum is σ = 397092003840. Its totient is φ = 31039303680.

The previous prime is 113831651741. The next prime is 113831651851. The reversal of 113831651808 is 808156138311.

113831651808 is a `hidden beast` number, since 113 + 8 + 3 + 16 + 518 + 0 + 8 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13682466 + ... + 13690782.

It is an arithmetic number, because the mean of its divisors is an integer number (1034093760).

Almost surely, 2^113831651808 is an apocalyptic number.

113831651808 is a gapful number since it is divisible by the number (18) 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 113831651808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198546001920).

113831651808 is an abundant number, since it is smaller than the sum of its proper divisors (283260352032).

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

113831651808 is a wasteful number, since it uses less digits than its factorization.

113831651808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8447 (or 8433 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

It can be divided in two parts, 1138 and 31651808, that added together give a triangular number (31652946 = T₇₉₅₆).

The spelling of 113831651808 in words is "one hundred thirteen billion, eight hundred thirty-one million, six hundred fifty-one thousand, eight hundred eight".