204812044289 has 2 divisors, whose sum is σ = 204812044290. Its totient is φ = 204812044288.

The previous prime is 204812044273. The next prime is 204812044331. The reversal of 204812044289 is 982440218402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154291840000 + 50520204289 = 392800^2 + 224767^2 .

It is a cyclic number.

It is not a de Polignac number, because 204812044289 - 2⁴ = 204812044273 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (204812046289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102406022144 + 102406022145.

It is an arithmetic number, because the mean of its divisors is an integer number (102406022145).

Almost surely, 2^204812044289 is an apocalyptic number.

It is an amenable number.

204812044289 is a deficient number, since it is larger than the sum of its proper divisors (1).

204812044289 is an equidigital number, since it uses as much as digits as its factorization.

204812044289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 294912, while the sum is 44.

The spelling of 204812044289 in words is "two hundred four billion, eight hundred twelve million, forty-four thousand, two hundred eighty-nine".