23724612543 has 16 divisors (see below), whose sum is σ = 32189667840. Its totient is φ = 15538328064.

The previous prime is 23724612517. The next prime is 23724612563. The reversal of 23724612543 is 34521642732.

It is not a de Polignac number, because 23724612543 - 2⁸ = 23724612287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23724612563) 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, 237855 + ... + 322527.

It is an arithmetic number, because the mean of its divisors is an integer number (2011854240).

Almost surely, 2^23724612543 is an apocalyptic number.

23724612543 is a deficient number, since it is larger than the sum of its proper divisors (8465055297).

23724612543 is a wasteful number, since it uses less digits than its factorization.

23724612543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86318.

The product of its digits is 241920, while the sum is 39.

The spelling of 23724612543 in words is "twenty-three billion, seven hundred twenty-four million, six hundred twelve thousand, five hundred forty-three".