23542397923 has 32 divisors (see below), whose sum is σ = 26276659200. Its totient is φ = 20914202400.

The previous prime is 23542397897. The next prime is 23542397927. The reversal of 23542397923 is 32979324532.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 23542397923 - 2²⁹ = 23005527011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23542397927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54622518 + ... + 54622948.

It is an arithmetic number, because the mean of its divisors is an integer number (821145600).

Almost surely, 2^23542397923 is an apocalyptic number.

23542397923 is a deficient number, since it is larger than the sum of its proper divisors (2734261277).

23542397923 is a wasteful number, since it uses less digits than its factorization.

23542397923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023.

The product of its digits is 2449440, while the sum is 49.

The spelling of 23542397923 in words is "twenty-three billion, five hundred forty-two million, three hundred ninety-seven thousand, nine hundred twenty-three".