23642690189 has 8 divisors (see below), whose sum is σ = 23707622400. Its totient is φ = 23577800400.

The previous prime is 23642690153. The next prime is 23642690207. The reversal of 23642690189 is 98109624632.

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

It is a cyclic number.

It is not a de Polignac number, because 23642690189 - 2¹⁶ = 23642624653 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23642690119) 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, 1334612 + ... + 1352210.

It is an arithmetic number, because the mean of its divisors is an integer number (2963452800).

Almost surely, 2^23642690189 is an apocalyptic number.

It is an amenable number.

23642690189 is a deficient number, since it is larger than the sum of its proper divisors (64932211).

23642690189 is a wasteful number, since it uses less digits than its factorization.

23642690189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21211.

The product of its (nonzero) digits is 1119744, while the sum is 50.

The spelling of 23642690189 in words is "twenty-three billion, six hundred forty-two million, six hundred ninety thousand, one hundred eighty-nine".