18528238222 has 32 divisors (see below), whose sum is σ = 31720248000. Its totient is φ = 8040995328.

The previous prime is 18528238181. The next prime is 18528238237. The reversal of 18528238222 is 22283282581.

It is a super-2 number, since 2×18528238222² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 471279 + ... + 509077.

It is an arithmetic number, because the mean of its divisors is an integer number (991257750).

Almost surely, 2^18528238222 is an apocalyptic number.

18528238222 is a deficient number, since it is larger than the sum of its proper divisors (13192009778).

18528238222 is a wasteful number, since it uses less digits than its factorization.

18528238222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38940.

The product of its digits is 245760, while the sum is 43.

The spelling of 18528238222 in words is "eighteen billion, five hundred twenty-eight million, two hundred thirty-eight thousand, two hundred twenty-two".