23989255512 has 64 divisors (see below), whose sum is σ = 62030361600. Its totient is φ = 7723144320.

The previous prime is 23989255501. The next prime is 23989255523. The reversal of 23989255512 is 21555298932.

It is an interprime number because it is at equal distance from previous prime (23989255501) and next prime (23989255523).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 347023 + ... + 410369.

It is an arithmetic number, because the mean of its divisors is an integer number (969224400).

Almost surely, 2^23989255512 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 23989255512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31015180800).

23989255512 is an abundant number, since it is smaller than the sum of its proper divisors (38041106088).

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

23989255512 is a wasteful number, since it uses less digits than its factorization.

23989255512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63896 (or 63892 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 51.

The spelling of 23989255512 in words is "twenty-three billion, nine hundred eighty-nine million, two hundred fifty-five thousand, five hundred twelve".