18044004224443 has 8 divisors (see below), whose sum is σ = 18068487624000. Its totient is φ = 18019537422600.

The previous prime is 18044004224419. The next prime is 18044004224447. The reversal of 18044004224443 is 34442240044081.

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

It is a cyclic number.

It is not a de Polignac number, because 18044004224443 - 2²⁹ = 18043467353531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18044004224396 and 18044004224405.

It is not an unprimeable number, because it can be changed into a prime (18044004224447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1972905 + ... + 6323002.

It is an arithmetic number, because the mean of its divisors is an integer number (2258560953000).

Almost surely, 2^{18044004224443} is an apocalyptic number.

18044004224443 is a deficient number, since it is larger than the sum of its proper divisors (24483399557).

18044004224443 is a wasteful number, since it uses less digits than its factorization.

18044004224443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8298857.

The product of its (nonzero) digits is 393216, while the sum is 40.

The spelling of 18044004224443 in words is "eighteen trillion, forty-four billion, four million, two hundred twenty-four thousand, four hundred forty-three".