205227263205919 has 2 divisors, whose sum is σ = 205227263205920. Its totient is φ = 205227263205918.

The previous prime is 205227263205901. The next prime is 205227263205931. The reversal of 205227263205919 is 919502362722502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 205227263205919 - 2¹⁵ = 205227263173151 is a prime.

It is a super-2 number, since 2×205227263205919² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 205227263205919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205227263205959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102613631602959 + 102613631602960.

It is an arithmetic number, because the mean of its divisors is an integer number (102613631602960).

Almost surely, 2^{205227263205919} is an apocalyptic number.

205227263205919 is a deficient number, since it is larger than the sum of its proper divisors (1).

205227263205919 is an equidigital number, since it uses as much as digits as its factorization.

205227263205919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8164800, while the sum is 55.

The spelling of 205227263205919 in words is "two hundred five trillion, two hundred twenty-seven billion, two hundred sixty-three million, two hundred five thousand, nine hundred nineteen".