23518889116889 has 4 divisors (see below), whose sum is σ = 23738691819024. Its totient is φ = 23299086414756.

The previous prime is 23518889116843. The next prime is 23518889116907. The reversal of 23518889116889 is 98861198881532.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23518889116889 - 2²⁸ = 23518620681433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23518889112889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109901350907 + ... + 109901351120.

It is an arithmetic number, because the mean of its divisors is an integer number (5934672954756).

Almost surely, 2^{23518889116889} is an apocalyptic number.

It is an amenable number.

23518889116889 is a deficient number, since it is larger than the sum of its proper divisors (219802702135).

23518889116889 is a wasteful number, since it uses less digits than its factorization.

23518889116889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219802702134.

The product of its digits is 477757440, while the sum is 77.

The spelling of 23518889116889 in words is "twenty-three trillion, five hundred eighteen billion, eight hundred eighty-nine million, one hundred sixteen thousand, eight hundred eighty-nine".