18226428232 has 16 divisors (see below), whose sum is σ = 34969310640. Its totient is φ = 8901278736.

The previous prime is 18226428221. The next prime is 18226428277. The reversal of 18226428232 is 23282462281.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26491558 + ... + 26492245.

It is an arithmetic number, because the mean of its divisors is an integer number (2185581915).

Almost surely, 2^18226428232 is an apocalyptic number.

It is an amenable number.

18226428232 is a deficient number, since it is larger than the sum of its proper divisors (16742882408).

18226428232 is a wasteful number, since it uses less digits than its factorization.

18226428232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52983852 (or 52983848 counting only the distinct ones).

The product of its digits is 147456, while the sum is 40.

The spelling of 18226428232 in words is "eighteen billion, two hundred twenty-six million, four hundred twenty-eight thousand, two hundred thirty-two".