23520728832 has 144 divisors (see below), whose sum is σ = 65444628480. Its totient is φ = 7485198336.

The previous prime is 23520728831. The next prime is 23520728867. The reversal of 23520728832 is 23882702532.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23520728831) 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, 13370769 + ... + 13372527.

Almost surely, 2^23520728832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23520728832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32722314240).

23520728832 is an abundant number, since it is smaller than the sum of its proper divisors (41923899648).

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

23520728832 is a wasteful number, since it uses less digits than its factorization.

23520728832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2558 (or 2544 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 23520728832 in words is "twenty-three billion, five hundred twenty million, seven hundred twenty-eight thousand, eight hundred thirty-two".