9591766671959 has 2 divisors, whose sum is σ = 9591766671960. Its totient is φ = 9591766671958.

The previous prime is 9591766671953. The next prime is 9591766671961.

9591766671959 is nontrivially palindromic in base 10.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 9591766671959 - 2⁴ = 9591766671943 is a prime.

Together with 9591766671961, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9591766671953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4795883335979 + 4795883335980.

It is an arithmetic number, because the mean of its divisors is an integer number (4795883335980).

Almost surely, 2^{9591766671959} is an apocalyptic number.

9591766671959 is a deficient number, since it is larger than the sum of its proper divisors (1).

9591766671959 is an equidigital number, since it uses as much as digits as its factorization.

9591766671959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1736040600, while the sum is 80.

The spelling of 9591766671959 in words is "nine trillion, five hundred ninety-one billion, seven hundred sixty-six million, six hundred seventy-one thousand, nine hundred fifty-nine".