2560845197 has 2 divisors, whose sum is σ = 2560845198. Its totient is φ = 2560845196.

The previous prime is 2560845187. The next prime is 2560845239. The reversal of 2560845197 is 7915480652.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2517430276 + 43414921 = 50174^2 + 6589^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2560845197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2560845187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1280422598 + 1280422599.

It is an arithmetic number, because the mean of its divisors is an integer number (1280422599).

Almost surely, 2^2560845197 is an apocalyptic number.

It is an amenable number.

2560845197 is a deficient number, since it is larger than the sum of its proper divisors (1).

2560845197 is an equidigital number, since it uses as much as digits as its factorization.

2560845197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 47.

The square root of 2560845197 is about 50604.7942096399. The cubic root of 2560845197 is about 1368.1312893742.

The spelling of 2560845197 in words is "two billion, five hundred sixty million, eight hundred forty-five thousand, one hundred ninety-seven".