204026464289 has 2 divisors, whose sum is σ = 204026464290. Its totient is φ = 204026464288.

The previous prime is 204026464249. The next prime is 204026464331. The reversal of 204026464289 is 982464620402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 185532640225 + 18493824064 = 430735^2 + 135992^2 .

It is a cyclic number.

It is not a de Polignac number, because 204026464289 - 2²⁸ = 203758028833 is a prime.

It is not a weakly prime, because it can be changed into another prime (204026464249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102013232144 + 102013232145.

It is an arithmetic number, because the mean of its divisors is an integer number (102013232145).

Almost surely, 2^204026464289 is an apocalyptic number.

It is an amenable number.

204026464289 is a deficient number, since it is larger than the sum of its proper divisors (1).

204026464289 is an equidigital number, since it uses as much as digits as its factorization.

204026464289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1327104, while the sum is 47.

The spelling of 204026464289 in words is "two hundred four billion, twenty-six million, four hundred sixty-four thousand, two hundred eighty-nine".