18500093424 has 120 divisors (see below), whose sum is σ = 55888878240. Its totient is φ = 5695151616.

The previous prime is 18500093419. The next prime is 18500093459. The reversal of 18500093424 is 42439000581.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 259 + ... + 192354.

It is an arithmetic number, because the mean of its divisors is an integer number (465740652).

Almost surely, 2^18500093424 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 18500093424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27944439120).

18500093424 is an abundant number, since it is smaller than the sum of its proper divisors (37388784816).

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

18500093424 is a wasteful number, since it uses less digits than its factorization.

18500093424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192679 (or 192670 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 18500093424 in words is "eighteen billion, five hundred million, ninety-three thousand, four hundred twenty-four".