23664254729 has 16 divisors (see below), whose sum is σ = 25297130880. Its totient is φ = 22071242880.

The previous prime is 23664254693. The next prime is 23664254737. The reversal of 23664254729 is 92745246632.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 23664254729 - 2²⁰ = 23663206153 is a prime.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23664254129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 757244 + ... + 787874.

It is an arithmetic number, because the mean of its divisors is an integer number (1581070680).

Almost surely, 2^23664254729 is an apocalyptic number.

It is an amenable number.

23664254729 is a deficient number, since it is larger than the sum of its proper divisors (1632876151).

23664254729 is a wasteful number, since it uses less digits than its factorization.

23664254729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31280.

The product of its digits is 4354560, while the sum is 50.

The spelling of 23664254729 in words is "twenty-three billion, six hundred sixty-four million, two hundred fifty-four thousand, seven hundred twenty-nine".