6684950563 has 2 divisors, whose sum is σ = 6684950564. Its totient is φ = 6684950562.

The previous prime is 6684950551. The next prime is 6684950627. The reversal of 6684950563 is 3650594866.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6684950563 - 2¹³ = 6684942371 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6684950563.

It is not a weakly prime, because it can be changed into another prime (6684951563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3342475281 + 3342475282.

It is an arithmetic number, because the mean of its divisors is an integer number (3342475282).

Almost surely, 2^6684950563 is an apocalyptic number.

6684950563 is a deficient number, since it is larger than the sum of its proper divisors (1).

6684950563 is an equidigital number, since it uses as much as digits as its factorization.

6684950563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4665600, while the sum is 52.

The square root of 6684950563 is about 81761.5469704433. The cubic root of 6684950563 is about 1883.7910677283.

The spelling of 6684950563 in words is "six billion, six hundred eighty-four million, nine hundred fifty thousand, five hundred sixty-three".