18128084180 has 24 divisors (see below), whose sum is σ = 38550865920. Its totient is φ = 7159445280.

The previous prime is 18128084137. The next prime is 18128084209. The reversal of 18128084180 is 8148082181.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5735156 + ... + 5738315.

It is an arithmetic number, because the mean of its divisors is an integer number (1606286080).

Almost surely, 2^18128084180 is an apocalyptic number.

18128084180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18128084180 is an abundant number, since it is smaller than the sum of its proper divisors (20422781740).

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

18128084180 is a wasteful number, since it uses less digits than its factorization.

18128084180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11473559 (or 11473557 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 41.

The spelling of 18128084180 in words is "eighteen billion, one hundred twenty-eight million, eighty-four thousand, one hundred eighty".