23143996512 has 288 divisors, whose sum is σ = 84006703872. Its totient is φ = 6103724544.

The previous prime is 23143996483. The next prime is 23143996549. The reversal of 23143996512 is 21569934132.

23143996512 is a `hidden beast` number, since 2 + 3 + 1 + 43 + 9 + 96 + 512 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a super-2 number, since 2×23143996512² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 691263 + ... + 723969.

It is an arithmetic number, because the mean of its divisors is an integer number (291689944).

Almost surely, 2^23143996512 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 23143996512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42003351936).

23143996512 is an abundant number, since it is smaller than the sum of its proper divisors (60862707360).

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

23143996512 is a wasteful number, since it uses less digits than its factorization.

23143996512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32752 (or 32732 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The spelling of 23143996512 in words is "twenty-three billion, one hundred forty-three million, nine hundred ninety-six thousand, five hundred twelve".