18226859794 has 16 divisors (see below), whose sum is σ = 32120061120. Its totient is φ = 7647633360.

The previous prime is 18226859741. The next prime is 18226859801. The reversal of 18226859794 is 49795862281.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31864854 + ... + 31865425.

It is an arithmetic number, because the mean of its divisors is an integer number (2007503820).

Almost surely, 2^18226859794 is an apocalyptic number.

18226859794 is a deficient number, since it is larger than the sum of its proper divisors (13893201326).

18226859794 is a wasteful number, since it uses less digits than its factorization.

18226859794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63730305.

The product of its digits is 17418240, while the sum is 61.

The spelling of 18226859794 in words is "eighteen billion, two hundred twenty-six million, eight hundred fifty-nine thousand, seven hundred ninety-four".