204226264309 has 2 divisors, whose sum is σ = 204226264310. Its totient is φ = 204226264308.

The previous prime is 204226264261. The next prime is 204226264337. The reversal of 204226264309 is 903462622402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199739274084 + 4486990225 = 446922^2 + 66985^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204226264309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204226264409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102113132154 + 102113132155.

It is an arithmetic number, because the mean of its divisors is an integer number (102113132155).

Almost surely, 2^204226264309 is an apocalyptic number.

It is an amenable number.

204226264309 is a deficient number, since it is larger than the sum of its proper divisors (1).

204226264309 is an equidigital number, since it uses as much as digits as its factorization.

204226264309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 204226264309 in words is "two hundred four billion, two hundred twenty-six million, two hundred sixty-four thousand, three hundred nine".