18183638182 has 16 divisors (see below), whose sum is σ = 27850942512. Its totient is φ = 8901809280.

The previous prime is 18183638177. The next prime is 18183638233. The reversal of 18183638182 is 28183638181.

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 7 ways as a sum of consecutive naturals, for example, 434544 + ... + 474547.

It is an arithmetic number, because the mean of its divisors is an integer number (1740683907).

Almost surely, 2^18183638182 is an apocalyptic number.

18183638182 is a deficient number, since it is larger than the sum of its proper divisors (9667304330).

18183638182 is a wasteful number, since it uses less digits than its factorization.

18183638182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909303.

The product of its digits is 442368, while the sum is 49.

Subtracting 18183638182 from its reverse (28183638181), we obtain a palindrome (9999999999).

The spelling of 18183638182 in words is "eighteen billion, one hundred eighty-three million, six hundred thirty-eight thousand, one hundred eighty-two".