18291818282 has 32 divisors (see below), whose sum is σ = 29150755200. Its totient is φ = 8584213248.

The previous prime is 18291818267. The next prime is 18291818317. The reversal of 18291818282 is 28281819281.

It is a self number, because there is not a number n which added to its sum of digits gives 18291818282.

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, 1981694 + ... + 1990902.

It is an arithmetic number, because the mean of its divisors is an integer number (910961100).

Almost surely, 2^18291818282 is an apocalyptic number.

18291818282 is a deficient number, since it is larger than the sum of its proper divisors (10858936918).

18291818282 is a wasteful number, since it uses less digits than its factorization.

18291818282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9710.

The product of its digits is 294912, while the sum is 50.

Subtracting 18291818282 from its reverse (28281819281), we obtain a palindrome (9990000999).

The spelling of 18291818282 in words is "eighteen billion, two hundred ninety-one million, eight hundred eighteen thousand, two hundred eighty-two".