259855206966769 has 2 divisors, whose sum is σ = 259855206966770. Its totient is φ = 259855206966768.

The previous prime is 259855206966757. The next prime is 259855206966853. The reversal of 259855206966769 is 967669602558952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 234781703017744 + 25073503949025 = 15322588^2 + 5007345^2 .

It is a cyclic number.

It is not a de Polignac number, because 259855206966769 - 2¹³ = 259855206958577 is a prime.

It is a super-2 number, since 2×259855206966769² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (259855206966739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129927603483384 + 129927603483385.

It is an arithmetic number, because the mean of its divisors is an integer number (129927603483385).

Almost surely, 2^{259855206966769} is an apocalyptic number.

It is an amenable number.

259855206966769 is a deficient number, since it is larger than the sum of its proper divisors (1).

259855206966769 is an equidigital number, since it uses as much as digits as its factorization.

259855206966769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26453952000, while the sum is 85.

The spelling of 259855206966769 in words is "two hundred fifty-nine trillion, eight hundred fifty-five billion, two hundred six million, nine hundred sixty-six thousand, seven hundred sixty-nine".