6885321659 has 2 divisors, whose sum is σ = 6885321660. Its totient is φ = 6885321658.

The previous prime is 6885321613. The next prime is 6885321679. The reversal of 6885321659 is 9561235886.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6885321659 - 2¹² = 6885317563 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6885321659.

It is not a weakly prime, because it can be changed into another prime (6885321679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3442660829 + 3442660830.

It is an arithmetic number, because the mean of its divisors is an integer number (3442660830).

Almost surely, 2^6885321659 is an apocalyptic number.

6885321659 is a deficient number, since it is larger than the sum of its proper divisors (1).

6885321659 is an equidigital number, since it uses as much as digits as its factorization.

6885321659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3110400, while the sum is 53.

The square root of 6885321659 is about 82977.8383606129. The cubic root of 6885321659 is about 1902.4273370726.

The spelling of 6885321659 in words is "six billion, eight hundred eighty-five million, three hundred twenty-one thousand, six hundred fifty-nine".