204423244439 has 2 divisors, whose sum is σ = 204423244440. Its totient is φ = 204423244438.

The previous prime is 204423244433. The next prime is 204423244447. The reversal of 204423244439 is 934442324402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204423244439 - 2¹⁶ = 204423178903 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 204423244396 and 204423244405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204423244433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102211622219 + 102211622220.

It is an arithmetic number, because the mean of its divisors is an integer number (102211622220).

Almost surely, 2^204423244439 is an apocalyptic number.

204423244439 is a deficient number, since it is larger than the sum of its proper divisors (1).

204423244439 is an equidigital number, since it uses as much as digits as its factorization.

204423244439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 663552, while the sum is 41.

The spelling of 204423244439 in words is "two hundred four billion, four hundred twenty-three million, two hundred forty-four thousand, four hundred thirty-nine".