18334233272 has 16 divisors (see below), whose sum is σ = 34378834560. Its totient is φ = 9166544064.

The previous prime is 18334233263. The next prime is 18334233283. The reversal of 18334233272 is 27233243381.

It is a super-2 number, since 2×18334233272² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 84548 + ... + 209324.

It is an arithmetic number, because the mean of its divisors is an integer number (2148677160).

Almost surely, 2^18334233272 is an apocalyptic number.

It is an amenable number.

18334233272 is a deficient number, since it is larger than the sum of its proper divisors (16044601288).

18334233272 is a wasteful number, since it uses less digits than its factorization.

18334233272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143150 (or 143146 counting only the distinct ones).

The product of its digits is 145152, while the sum is 38.

The spelling of 18334233272 in words is "eighteen billion, three hundred thirty-four million, two hundred thirty-three thousand, two hundred seventy-two".