23513543504 has 40 divisors (see below), whose sum is σ = 49721662848. Its totient is φ = 10683118080.

The previous prime is 23513543503. The next prime is 23513543507. The reversal of 23513543504 is 40534531532.

It is a happy number.

It is a super-2 number, since 2×23513543504² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23513543503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373304 + ... + 431720.

Almost surely, 2^23513543504 is an apocalyptic number.

It is an amenable number.

23513543504 is an abundant number, since it is smaller than the sum of its proper divisors (26208119344).

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

23513543504 is a wasteful number, since it uses less digits than its factorization.

23513543504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60723 (or 60717 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 35.

The spelling of 23513543504 in words is "twenty-three billion, five hundred thirteen million, five hundred forty-three thousand, five hundred four".