204743774273 has 2 divisors, whose sum is σ = 204743774274. Its totient is φ = 204743774272.

The previous prime is 204743774243. The next prime is 204743774309. The reversal of 204743774273 is 372477347402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189950403889 + 14793370384 = 435833^2 + 121628^2 .

It is a cyclic number.

It is not a de Polignac number, because 204743774273 - 2¹⁰ = 204743773249 is a prime.

It is not a weakly prime, because it can be changed into another prime (204743774243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102371887136 + 102371887137.

It is an arithmetic number, because the mean of its divisors is an integer number (102371887137).

Almost surely, 2^204743774273 is an apocalyptic number.

It is an amenable number.

204743774273 is a deficient number, since it is larger than the sum of its proper divisors (1).

204743774273 is an equidigital number, since it uses as much as digits as its factorization.

204743774273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5531904, while the sum is 50.

The spelling of 204743774273 in words is "two hundred four billion, seven hundred forty-three million, seven hundred seventy-four thousand, two hundred seventy-three".