205425569214773 has 2 divisors, whose sum is σ = 205425569214774. Its totient is φ = 205425569214772.

The previous prime is 205425569214757. The next prime is 205425569214787. The reversal of 205425569214773 is 377412965524502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 188112663483889 + 17312905730884 = 13715417^2 + 4160878^2 .

It is a cyclic number.

It is not a de Polignac number, because 205425569214773 - 2⁴ = 205425569214757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205425569214703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102712784607386 + 102712784607387.

It is an arithmetic number, because the mean of its divisors is an integer number (102712784607387).

Almost surely, 2^{205425569214773} is an apocalyptic number.

It is an amenable number.

205425569214773 is a deficient number, since it is larger than the sum of its proper divisors (1).

205425569214773 is an equidigital number, since it uses as much as digits as its factorization.

205425569214773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008000, while the sum is 62.

The spelling of 205425569214773 in words is "two hundred five trillion, four hundred twenty-five billion, five hundred sixty-nine million, two hundred fourteen thousand, seven hundred seventy-three".