2856234204169 has 2 divisors, whose sum is σ = 2856234204170. Its totient is φ = 2856234204168.

The previous prime is 2856234204151. The next prime is 2856234204191. The reversal of 2856234204169 is 9614024326582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2728152530944 + 128081673225 = 1651712^2 + 357885^2 .

It is a cyclic number.

It is not a de Polignac number, because 2856234204169 - 2⁹ = 2856234203657 is a prime.

It is a super-2 number, since 2×2856234204169² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2856234204149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1428117102084 + 1428117102085.

It is an arithmetic number, because the mean of its divisors is an integer number (1428117102085).

Almost surely, 2^{2856234204169} is an apocalyptic number.

It is an amenable number.

2856234204169 is a deficient number, since it is larger than the sum of its proper divisors (1).

2856234204169 is an equidigital number, since it uses as much as digits as its factorization.

2856234204169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4976640, while the sum is 52.

The spelling of 2856234204169 in words is "two trillion, eight hundred fifty-six billion, two hundred thirty-four million, two hundred four thousand, one hundred sixty-nine".