23844809189 has 4 divisors (see below), whose sum is σ = 23866746624. Its totient is φ = 23822871756.

The previous prime is 23844809179. The next prime is 23844809207. The reversal of 23844809189 is 98190844832.

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 23844809189 - 2⁴ = 23844809173 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 (23844809129) 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, 10967087 + ... + 10969260.

It is an arithmetic number, because the mean of its divisors is an integer number (5966686656).

Almost surely, 2^23844809189 is an apocalyptic number.

It is an amenable number.

23844809189 is a deficient number, since it is larger than the sum of its proper divisors (21937435).

23844809189 is a wasteful number, since it uses less digits than its factorization.

23844809189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21937434.

The product of its (nonzero) digits is 3981312, while the sum is 56.

The spelling of 23844809189 in words is "twenty-three billion, eight hundred forty-four million, eight hundred nine thousand, one hundred eighty-nine".