23688891479 has 16 divisors (see below), whose sum is σ = 26474722560. Its totient is φ = 21009629760.

The previous prime is 23688891467. The next prime is 23688891493. The reversal of 23688891479 is 97419888632.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 23688891479 - 2²⁰ = 23687842903 is a prime.

It is a super-2 number, since 2×23688891479² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23688891419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 376142 + ... + 434580.

It is an arithmetic number, because the mean of its divisors is an integer number (1654670160).

Almost surely, 2^23688891479 is an apocalyptic number.

23688891479 is a deficient number, since it is larger than the sum of its proper divisors (2785831081).

23688891479 is a wasteful number, since it uses less digits than its factorization.

23688891479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59350.

The product of its digits is 41803776, while the sum is 65.

The spelling of 23688891479 in words is "twenty-three billion, six hundred eighty-eight million, eight hundred ninety-one thousand, four hundred seventy-nine".