18130018832 has 80 divisors (see below), whose sum is σ = 38098811520. Its totient is φ = 8326416384.

The previous prime is 18130018813. The next prime is 18130018843. The reversal of 18130018832 is 23881003181.

It is a junction number, because it is equal to n+sod(n) for n = 18130018792 and 18130018801.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1981853 + ... + 1990979.

It is an arithmetic number, because the mean of its divisors is an integer number (476235144).

Almost surely, 2^18130018832 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 18130018832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19049405760).

18130018832 is an abundant number, since it is smaller than the sum of its proper divisors (19968792688).

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

18130018832 is a wasteful number, since it uses less digits than its factorization.

18130018832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9328 (or 9322 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The spelling of 18130018832 in words is "eighteen billion, one hundred thirty million, eighteen thousand, eight hundred thirty-two".