23928811728 has 40 divisors (see below), whose sum is σ = 62428150176. Its totient is φ = 7897296000.

The previous prime is 23928811727. The next prime is 23928811733. The reversal of 23928811728 is 82711882932.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23928811727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2463058 + ... + 2472753.

Almost surely, 2^23928811728 is an apocalyptic number.

It is an amenable number.

23928811728 is an abundant number, since it is smaller than the sum of its proper divisors (38499338448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23928811728 is a wasteful number, since it uses less digits than its factorization.

23928811728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4935923 (or 4935917 counting only the distinct ones).

The product of its digits is 774144, while the sum is 51.

The spelling of 23928811728 in words is "twenty-three billion, nine hundred twenty-eight million, eight hundred eleven thousand, seven hundred twenty-eight".