23409678189 has 8 divisors (see below), whose sum is σ = 31437458080. Its totient is φ = 15494175216.

The previous prime is 23409678169. The next prime is 23409678197. The reversal of 23409678189 is 98187690432.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23409678189 - 2⁵ = 23409678157 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 (23409678169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28068742 + ... + 28069575.

It is an arithmetic number, because the mean of its divisors is an integer number (3929682260).

Almost surely, 2^23409678189 is an apocalyptic number.

It is an amenable number.

23409678189 is a deficient number, since it is larger than the sum of its proper divisors (8027779891).

23409678189 is a wasteful number, since it uses less digits than its factorization.

23409678189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56138459.

The product of its (nonzero) digits is 5225472, while the sum is 57.

The spelling of 23409678189 in words is "twenty-three billion, four hundred nine million, six hundred seventy-eight thousand, one hundred eighty-nine".