18730173024 has 120 divisors (see below), whose sum is σ = 55291753440. Its totient is φ = 6219949824.

The previous prime is 18730173013. The next prime is 18730173047. The reversal of 18730173024 is 42037103781.

It is a super-3 number, since 3×18730173024³ (a number of 32 digits) contains 333 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 18730173024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 683817 + ... + 710679.

It is an arithmetic number, because the mean of its divisors is an integer number (460764612).

Almost surely, 2^18730173024 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 18730173024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27645876720).

18730173024 is an abundant number, since it is smaller than the sum of its proper divisors (36561580416).

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

18730173024 is a wasteful number, since it uses less digits than its factorization.

18730173024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27154 (or 27137 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The spelling of 18730173024 in words is "eighteen billion, seven hundred thirty million, one hundred seventy-three thousand, twenty-four".