23668218924 has 144 divisors (see below), whose sum is σ = 68195675520. Its totient is φ = 6348249600.

The previous prime is 23668218919. The next prime is 23668218947. The reversal of 23668218924 is 42981286632.

It is a happy number.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (51).

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, 4185499 + ... + 4191149.

It is an arithmetic number, because the mean of its divisors is an integer number (473581080).

Almost surely, 2^23668218924 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 23668218924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34097837760).

23668218924 is an abundant number, since it is smaller than the sum of its proper divisors (44527456596).

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

23668218924 is a wasteful number, since it uses less digits than its factorization.

23668218924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6108 (or 6099 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 51.

The spelling of 23668218924 in words is "twenty-three billion, six hundred sixty-eight million, two hundred eighteen thousand, nine hundred twenty-four".