204100504454089 has 2 divisors, whose sum is σ = 204100504454090. Its totient is φ = 204100504454088.

The previous prime is 204100504454083. The next prime is 204100504454129. The reversal of 204100504454089 is 980454405001402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202419138398464 + 1681366055625 = 14227408^2 + 1296675^2 .

It is a cyclic number.

It is not a de Polignac number, because 204100504454089 - 2²⁹ = 204099967583177 is a prime.

It is not a weakly prime, because it can be changed into another prime (204100504454083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102050252227044 + 102050252227045.

It is an arithmetic number, because the mean of its divisors is an integer number (102050252227045).

Almost surely, 2^{204100504454089} is an apocalyptic number.

It is an amenable number.

204100504454089 is a deficient number, since it is larger than the sum of its proper divisors (1).

204100504454089 is an equidigital number, since it uses as much as digits as its factorization.

204100504454089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 921600, while the sum is 46.

The spelling of 204100504454089 in words is "two hundred four trillion, one hundred billion, five hundred four million, four hundred fifty-four thousand, eighty-nine".