18227197032 has 48 divisors (see below), whose sum is σ = 50087140320. Its totient is φ = 5523392160.

The previous prime is 18227197013. The next prime is 18227197033. The reversal of 18227197032 is 23079172281.

It is not an unprimeable number, because it can be changed into a prime (18227197033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3135388 + ... + 3141195.

It is an arithmetic number, because the mean of its divisors is an integer number (1043482090).

Almost surely, 2^18227197032 is an apocalyptic number.

18227197032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18227197032 is an abundant number, since it is smaller than the sum of its proper divisors (31859943288).

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

18227197032 is a wasteful number, since it uses less digits than its factorization.

18227197032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6276614 (or 6276599 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The spelling of 18227197032 in words is "eighteen billion, two hundred twenty-seven million, one hundred ninety-seven thousand, thirty-two".