18171393060 has 48 divisors (see below), whose sum is σ = 50887763136. Its totient is φ = 4844956032.

The previous prime is 18171393017. The next prime is 18171393061. The reversal of 18171393060 is 6039317181.

It is not an unprimeable number, because it can be changed into a prime (18171393061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 445899 + ... + 484941.

It is an arithmetic number, because the mean of its divisors is an integer number (1060161732).

Almost surely, 2^18171393060 is an apocalyptic number.

18171393060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18171393060 is an abundant number, since it is smaller than the sum of its proper divisors (32716370076).

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

18171393060 is a wasteful number, since it uses less digits than its factorization.

18171393060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46812 (or 46810 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 39.

The spelling of 18171393060 in words is "eighteen billion, one hundred seventy-one million, three hundred ninety-three thousand, sixty".