113888636490 has 32 divisors (see below), whose sum is σ = 276792641280. Its totient is φ = 29985868224.

The previous prime is 113888636443. The next prime is 113888636591. The reversal of 113888636490 is 94636888311.

It is a self number, because there is not a number n which added to its sum of digits gives 113888636490.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24024769 + ... + 24029508.

It is an arithmetic number, because the mean of its divisors is an integer number (8649770040).

Almost surely, 2^113888636490 is an apocalyptic number.

113888636490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

113888636490 is an abundant number, since it is smaller than the sum of its proper divisors (162904004790).

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

113888636490 is a wasteful number, since it uses less digits than its factorization.

113888636490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48054366.

The product of its (nonzero) digits is 5971968, while the sum is 57.

The spelling of 113888636490 in words is "one hundred thirteen billion, eight hundred eighty-eight million, six hundred thirty-six thousand, four hundred ninety".