18273638282 has 32 divisors (see below), whose sum is σ = 28637452800. Its totient is φ = 8734398400.

The previous prime is 18273638267. The next prime is 18273638321. The reversal of 18273638282 is 28283637281.

It is a super-2 number, since 2×18273638282² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18273638282.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3636932 + ... + 3641952.

It is an arithmetic number, because the mean of its divisors is an integer number (894920400).

Almost surely, 2^18273638282 is an apocalyptic number.

18273638282 is a deficient number, since it is larger than the sum of its proper divisors (10363814518).

18273638282 is a wasteful number, since it uses less digits than its factorization.

18273638282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5662.

The product of its digits is 1548288, while the sum is 50.

The spelling of 18273638282 in words is "eighteen billion, two hundred seventy-three million, six hundred thirty-eight thousand, two hundred eighty-two".