113645973939 has 16 divisors (see below), whose sum is σ = 152225166720. Its totient is φ = 75415512960.

The previous prime is 113645973937. The next prime is 113645973949. The reversal of 113645973939 is 939379546311.

It is not a de Polignac number, because 113645973939 - 2¹ = 113645973937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113645973937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4331019 + ... + 4357179.

It is an arithmetic number, because the mean of its divisors is an integer number (9514072920).

Almost surely, 2^113645973939 is an apocalyptic number.

113645973939 is a deficient number, since it is larger than the sum of its proper divisors (38579192781).

113645973939 is a wasteful number, since it uses less digits than its factorization.

113645973939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32770.

The product of its digits is 16533720, while the sum is 60.

The spelling of 113645973939 in words is "one hundred thirteen billion, six hundred forty-five million, nine hundred seventy-three thousand, nine hundred thirty-nine".