18282031208 has 32 divisors (see below), whose sum is σ = 39202954560. Its totient is φ = 7829721600.

The previous prime is 18282031147. The next prime is 18282031219. The reversal of 18282031208 is 80213028281.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31241 + ... + 193752.

It is an arithmetic number, because the mean of its divisors is an integer number (1225092330).

Almost surely, 2^18282031208 is an apocalyptic number.

It is an amenable number.

18282031208 is an abundant number, since it is smaller than the sum of its proper divisors (20920923352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18282031208 is a wasteful number, since it uses less digits than its factorization.

18282031208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226457 (or 226453 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 35.

Adding to 18282031208 its reverse (80213028281), we get a palindrome (98495059489).

The spelling of 18282031208 in words is "eighteen billion, two hundred eighty-two million, thirty-one thousand, two hundred eight".