204326468861 has 2 divisors, whose sum is σ = 204326468862. Its totient is φ = 204326468860.

The previous prime is 204326468839. The next prime is 204326468993. The reversal of 204326468861 is 168864623402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 179156646361 + 25169822500 = 423269^2 + 158650^2 .

It is a cyclic number.

It is not a de Polignac number, because 204326468861 - 2²² = 204322274557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204326468821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102163234430 + 102163234431.

It is an arithmetic number, because the mean of its divisors is an integer number (102163234431).

Almost surely, 2^204326468861 is an apocalyptic number.

It is an amenable number.

204326468861 is a deficient number, since it is larger than the sum of its proper divisors (1).

204326468861 is an equidigital number, since it uses as much as digits as its factorization.

204326468861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2654208, while the sum is 50.

The spelling of 204326468861 in words is "two hundred four billion, three hundred twenty-six million, four hundred sixty-eight thousand, eight hundred sixty-one".