113843916643 has 6 divisors (see below), whose sum is σ = 120934541516. Its totient is φ = 107147215392.

The previous prime is 113843916601. The next prime is 113843916701. The reversal of 113843916643 is 346619348311.

It is not a de Polignac number, because 113843916643 - 2³³ = 105253982051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113843916143) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 196961505 + ... + 196962082.

Almost surely, 2^113843916643 is an apocalyptic number.

113843916643 is a deficient number, since it is larger than the sum of its proper divisors (7090624873).

113843916643 is an equidigital number, since it uses as much as digits as its factorization.

113843916643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393923621 (or 393923604 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 49.

The spelling of 113843916643 in words is "one hundred thirteen billion, eight hundred forty-three million, nine hundred sixteen thousand, six hundred forty-three".