18023764992 has 44 divisors (see below), whose sum is σ = 48039913056. Its totient is φ = 6007920640.

The previous prime is 18023764991. The next prime is 18023765033. The reversal of 18023764992 is 29946732081.

It is a super-2 number, since 2×18023764992² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18023764991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2930484 + ... + 2936627.

Almost surely, 2^18023764992 is an apocalyptic number.

18023764992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18023764992 is an abundant number, since it is smaller than the sum of its proper divisors (30016148064).

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

18023764992 is an equidigital number, since it uses as much as digits as its factorization.

18023764992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5867134 (or 5867116 counting only the distinct ones).

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

The spelling of 18023764992 in words is "eighteen billion, twenty-three million, seven hundred sixty-four thousand, nine hundred ninety-two".