18244445796 has 18 divisors (see below), whose sum is σ = 46117904742. Its totient is φ = 6081481920.

The previous prime is 18244445761. The next prime is 18244445827. The reversal of 18244445796 is 69754444281.

18244445796 is a `hidden beast` number, since 1 + 8 + 24 + 4 + 44 + 579 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 16394241600 + 1850204196 = 128040^2 + 43014^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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 5 ways as a sum of consecutive naturals, for example, 253395045 + ... + 253395116.

It is an arithmetic number, because the mean of its divisors is an integer number (2562105819).

Almost surely, 2^18244445796 is an apocalyptic number.

It is an amenable number.

18244445796 is an abundant number, since it is smaller than the sum of its proper divisors (27873458946).

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

18244445796 is a wasteful number, since it uses less digits than its factorization.

18244445796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506790171 (or 506790166 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 54.

The spelling of 18244445796 in words is "eighteen billion, two hundred forty-four million, four hundred forty-five thousand, seven hundred ninety-six".