18723969024 has 96 divisors (see below), whose sum is σ = 50022423360. Its totient is φ = 6228320256.

The previous prime is 18723969023. The next prime is 18723969037. The reversal of 18723969024 is 42096932781.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18723969023) 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, 3210399 + ... + 3216225.

It is an arithmetic number, because the mean of its divisors is an integer number (521066910).

Almost surely, 2^18723969024 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 18723969024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25011211680).

18723969024 is an abundant number, since it is smaller than the sum of its proper divisors (31298454336).

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

18723969024 is an equidigital number, since it uses as much as digits as its factorization.

18723969024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6375 (or 6355 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 18723969024 in words is "eighteen billion, seven hundred twenty-three million, nine hundred sixty-nine thousand, twenty-four".