6691359359 has 2 divisors, whose sum is σ = 6691359360. Its totient is φ = 6691359358.

The previous prime is 6691359347. The next prime is 6691359377. The reversal of 6691359359 is 9539531966.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6691359359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6691359319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3345679679 + 3345679680.

It is an arithmetic number, because the mean of its divisors is an integer number (3345679680).

Almost surely, 2^6691359359 is an apocalyptic number.

6691359359 is a deficient number, since it is larger than the sum of its proper divisors (1).

6691359359 is an equidigital number, since it uses as much as digits as its factorization.

6691359359 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5904900, while the sum is 56.

The square root of 6691359359 is about 81800.7295749861. The cubic root of 6691359359 is about 1884.3928660794.

The spelling of 6691359359 in words is "six billion, six hundred ninety-one million, three hundred fifty-nine thousand, three hundred fifty-nine".