23989501152 has 144 divisors (see below), whose sum is σ = 71111778192. Its totient is φ = 7664025600.

The previous prime is 23989501139. The next prime is 23989501169. The reversal of 23989501152 is 25110598932.

23989501152 is a `hidden beast` number, since 2 + 3 + 98 + 9 + 501 + 1 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 23989501098 and 23989501107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 697152 + ... + 730752.

It is an arithmetic number, because the mean of its divisors is an integer number (493831793).

Almost surely, 2^23989501152 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 23989501152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35555889096).

23989501152 is an abundant number, since it is smaller than the sum of its proper divisors (47122277040).

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

23989501152 is a wasteful number, since it uses less digits than its factorization.

23989501152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33721 (or 33710 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The spelling of 23989501152 in words is "twenty-three billion, nine hundred eighty-nine million, five hundred one thousand, one hundred fifty-two".