204489217226 has 16 divisors (see below), whose sum is σ = 350759313600. Its totient is φ = 87586643520.

The previous prime is 204489217187. The next prime is 204489217241. The reversal of 204489217226 is 622712984402.

204489217226 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 4274735 + ... + 4322306.

It is an arithmetic number, because the mean of its divisors is an integer number (21922457100).

Almost surely, 2^204489217226 is an apocalyptic number.

204489217226 is a deficient number, since it is larger than the sum of its proper divisors (146270096374).

204489217226 is a wasteful number, since it uses less digits than its factorization.

204489217226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8598749.

The product of its (nonzero) digits is 774144, while the sum is 47.

The spelling of 204489217226 in words is "two hundred four billion, four hundred eighty-nine million, two hundred seventeen thousand, two hundred twenty-six".