6591117851 has 2 divisors, whose sum is σ = 6591117852. Its totient is φ = 6591117850.

The previous prime is 6591117833. The next prime is 6591117853. The reversal of 6591117851 is 1587111956.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6591117851 is a prime.

Together with 6591117853, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6591117853) 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, 3295558925 + 3295558926.

It is an arithmetic number, because the mean of its divisors is an integer number (3295558926).

Almost surely, 2^6591117851 is an apocalyptic number.

6591117851 is a deficient number, since it is larger than the sum of its proper divisors (1).

6591117851 is an equidigital number, since it uses as much as digits as its factorization.

6591117851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 44.

The square root of 6591117851 is about 81185.6997937445. The cubic root of 6591117851 is about 1874.9356162544.

The spelling of 6591117851 in words is "six billion, five hundred ninety-one million, one hundred seventeen thousand, eight hundred fifty-one".