18244928120 has 64 divisors (see below), whose sum is σ = 42550548480. Its totient is φ = 7036039296.

The previous prime is 18244928111. The next prime is 18244928123. The reversal of 18244928120 is 2182944281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18244928123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53537 + ... + 198383.

It is an arithmetic number, because the mean of its divisors is an integer number (664852320).

Almost surely, 2^18244928120 is an apocalyptic number.

18244928120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18244928120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21275274240).

18244928120 is an abundant number, since it is smaller than the sum of its proper divisors (24305620360).

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

18244928120 is a wasteful number, since it uses less digits than its factorization.

18244928120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144972 (or 144968 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 41.

The spelling of 18244928120 in words is "eighteen billion, two hundred forty-four million, nine hundred twenty-eight thousand, one hundred twenty".