18382718226 has 8 divisors (see below), whose sum is σ = 36765436464. Its totient is φ = 6127572740.

The previous prime is 18382718213. The next prime is 18382718261. The reversal of 18382718226 is 62281728381.

It is a sphenic number, since it is the product of 3 distinct primes.

18382718226 is an admirable number.

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 3 ways as a sum of consecutive naturals, for example, 1531893180 + ... + 1531893191.

It is an arithmetic number, because the mean of its divisors is an integer number (4595679558).

Almost surely, 2^18382718226 is an apocalyptic number.

18382718226 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18382718226 is a wasteful number, since it uses less digits than its factorization.

18382718226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3063786376.

The product of its digits is 516096, while the sum is 48.

The spelling of 18382718226 in words is "eighteen billion, three hundred eighty-two million, seven hundred eighteen thousand, two hundred twenty-six".