259643609611 has 2 divisors, whose sum is σ = 259643609612. Its totient is φ = 259643609610.

The previous prime is 259643609569. The next prime is 259643609623. The reversal of 259643609611 is 116906346952.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 259643609611 - 2³⁷ = 122204656139 is a prime.

It is not a weakly prime, because it can be changed into another prime (259643609671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129821804805 + 129821804806.

It is an arithmetic number, because the mean of its divisors is an integer number (129821804806).

Almost surely, 2^259643609611 is an apocalyptic number.

259643609611 is a deficient number, since it is larger than the sum of its proper divisors (1).

259643609611 is an equidigital number, since it uses as much as digits as its factorization.

259643609611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2099520, while the sum is 52.

The spelling of 259643609611 in words is "two hundred fifty-nine billion, six hundred forty-three million, six hundred nine thousand, six hundred eleven".