18605074180 has 96 divisors (see below), whose sum is σ = 48777603840. Its totient is φ = 5791111680.

The previous prime is 18605074171. The next prime is 18605074199. The reversal of 18605074180 is 8147050681.

It is a super-2 number, since 2×18605074180² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1182606 + ... + 1198234.

It is an arithmetic number, because the mean of its divisors is an integer number (508100040).

Almost surely, 2^18605074180 is an apocalyptic number.

18605074180 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 18605074180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24388801920).

18605074180 is an abundant number, since it is smaller than the sum of its proper divisors (30172529660).

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

18605074180 is a wasteful number, since it uses less digits than its factorization.

18605074180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16429 (or 16427 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 40.

The spelling of 18605074180 in words is "eighteen billion, six hundred five million, seventy-four thousand, one hundred eighty".