23143400808 has 32 divisors (see below), whose sum is σ = 63118366560. Its totient is φ = 7013151680.

The previous prime is 23143400773. The next prime is 23143400809. The reversal of 23143400808 is 80800434132.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (23143400809) 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, 43831935 + ... + 43832462.

It is an arithmetic number, because the mean of its divisors is an integer number (1972448955).

Almost surely, 2^23143400808 is an apocalyptic number.

It is an amenable number.

23143400808 is an abundant number, since it is smaller than the sum of its proper divisors (39974965752).

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

23143400808 is a wasteful number, since it uses less digits than its factorization.

23143400808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87664417 (or 87664413 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The spelling of 23143400808 in words is "twenty-three billion, one hundred forty-three million, four hundred thousand, eight hundred eight".