18363636382 has 64 divisors (see below), whose sum is σ = 36040435200. Its totient is φ = 6814108800.

The previous prime is 18363636323. The next prime is 18363636391. The reversal of 18363636382 is 28363636381.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 322969 + ... + 375547.

It is an arithmetic number, because the mean of its divisors is an integer number (563131800).

Almost surely, 2^18363636382 is an apocalyptic number.

18363636382 is a deficient number, since it is larger than the sum of its proper divisors (17676798818).

18363636382 is a wasteful number, since it uses less digits than its factorization.

18363636382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52721.

The product of its digits is 2239488, while the sum is 49.

Subtracting 18363636382 from its reverse (28363636381), we obtain a palindrome (9999999999).

The spelling of 18363636382 in words is "eighteen billion, three hundred sixty-three million, six hundred thirty-six thousand, three hundred eighty-two".