204219190518223 has 2 divisors, whose sum is σ = 204219190518224. Its totient is φ = 204219190518222.

The previous prime is 204219190518173. The next prime is 204219190518227. The reversal of 204219190518223 is 322815091912402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204219190518223 - 2²⁵ = 204219156963791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204219190518227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102109595259111 + 102109595259112.

It is an arithmetic number, because the mean of its divisors is an integer number (102109595259112).

Almost surely, 2^{204219190518223} is an apocalyptic number.

204219190518223 is a deficient number, since it is larger than the sum of its proper divisors (1).

204219190518223 is an equidigital number, since it uses as much as digits as its factorization.

204219190518223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 49.

The spelling of 204219190518223 in words is "two hundred four trillion, two hundred nineteen billion, one hundred ninety million, five hundred eighteen thousand, two hundred twenty-three".