204076301743217 has 2 divisors, whose sum is σ = 204076301743218. Its totient is φ = 204076301743216.

The previous prime is 204076301743169. The next prime is 204076301743393. The reversal of 204076301743217 is 712347103670402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164054495757376 + 40021805985841 = 12808376^2 + 6326279^2 .

It is a cyclic number.

It is not a de Polignac number, because 204076301743217 - 2¹⁰ = 204076301742193 is a prime.

It is not a weakly prime, because it can be changed into another prime (204076301743417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102038150871608 + 102038150871609.

It is an arithmetic number, because the mean of its divisors is an integer number (102038150871609).

Almost surely, 2^{204076301743217} is an apocalyptic number.

It is an amenable number.

204076301743217 is a deficient number, since it is larger than the sum of its proper divisors (1).

204076301743217 is an equidigital number, since it uses as much as digits as its factorization.

204076301743217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1185408, while the sum is 47.

The spelling of 204076301743217 in words is "two hundred four trillion, seventy-six billion, three hundred one million, seven hundred forty-three thousand, two hundred seventeen".