23026401639 has 12 divisors (see below), whose sum is σ = 33427498000. Its totient is φ = 15273792864.

The previous prime is 23026401617. The next prime is 23026401641. The reversal of 23026401639 is 93610462032.

23026401639 is a `hidden beast` number, since 2 + 3 + 0 + 2 + 640 + 1 + 6 + 3 + 9 = 666.

It is not a de Polignac number, because 23026401639 - 2⁹ = 23026401127 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 (23026401649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6426574 + ... + 6430155.

Almost surely, 2^23026401639 is an apocalyptic number.

23026401639 is a deficient number, since it is larger than the sum of its proper divisors (10401096361).

23026401639 is a wasteful number, since it uses less digits than its factorization.

23026401639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12856934 (or 12856931 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The spelling of 23026401639 in words is "twenty-three billion, twenty-six million, four hundred one thousand, six hundred thirty-nine".