23991744117 has 48 divisors (see below), whose sum is σ = 35928811520. Its totient is φ = 14226347520.

The previous prime is 23991744097. The next prime is 23991744157. The reversal of 23991744117 is 71144719932.

It is not a de Polignac number, because 23991744117 - 2⁸ = 23991743861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23991744157) 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, 3361809 + ... + 3368937.

Almost surely, 2^23991744117 is an apocalyptic number.

It is an amenable number.

23991744117 is a deficient number, since it is larger than the sum of its proper divisors (11937067403).

23991744117 is a wasteful number, since it uses less digits than its factorization.

23991744117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7354 (or 7343 counting only the distinct ones).

The product of its digits is 381024, while the sum is 48.

The spelling of 23991744117 in words is "twenty-three billion, nine hundred ninety-one million, seven hundred forty-four thousand, one hundred seventeen".