113765814891 has 48 divisors (see below), whose sum is σ = 171337420800. Its totient is φ = 72690649920.

The previous prime is 113765814881. The next prime is 113765814919. The reversal of 113765814891 is 198418567311.

113765814891 is a `hidden beast` number, since 1 + 13 + 7 + 6 + 581 + 48 + 9 + 1 = 666.

It is not a de Polignac number, because 113765814891 - 2⁷ = 113765814763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113765814821) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4462206 + ... + 4487628.

It is an arithmetic number, because the mean of its divisors is an integer number (3569529600).

Almost surely, 2^113765814891 is an apocalyptic number.

113765814891 is a deficient number, since it is larger than the sum of its proper divisors (57571605909).

113765814891 is a wasteful number, since it uses less digits than its factorization.

113765814891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25696 (or 25693 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 54.

The spelling of 113765814891 in words is "one hundred thirteen billion, seven hundred sixty-five million, eight hundred fourteen thousand, eight hundred ninety-one".