23664934749 has 4 divisors (see below), whose sum is σ = 31553246336. Its totient is φ = 15776623164.

The previous prime is 23664934729. The next prime is 23664934753. The reversal of 23664934749 is 94743946632.

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 not a de Polignac number, because 23664934749 - 2⁸ = 23664934493 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 (23664934729) 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, 3944155789 + ... + 3944155794.

It is an arithmetic number, because the mean of its divisors is an integer number (7888311584).

Almost surely, 2^23664934749 is an apocalyptic number.

It is an amenable number.

23664934749 is a deficient number, since it is larger than the sum of its proper divisors (7888311587).

23664934749 is an equidigital number, since it uses as much as digits as its factorization.

23664934749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7888311586.

The product of its digits is 23514624, while the sum is 57.

The spelling of 23664934749 in words is "twenty-three billion, six hundred sixty-four million, nine hundred thirty-four thousand, seven hundred forty-nine".