6689652941 has 2 divisors, whose sum is σ = 6689652942. Its totient is φ = 6689652940.

The previous prime is 6689652919. The next prime is 6689652953. The reversal of 6689652941 is 1492569866.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6689604100 + 48841 = 81790^2 + 221^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6689652941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6689652911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3344826470 + 3344826471.

It is an arithmetic number, because the mean of its divisors is an integer number (3344826471).

Almost surely, 2^6689652941 is an apocalyptic number.

It is an amenable number.

6689652941 is a deficient number, since it is larger than the sum of its proper divisors (1).

6689652941 is an equidigital number, since it uses as much as digits as its factorization.

6689652941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5598720, while the sum is 56.

The square root of 6689652941 is about 81790.2985750755. The cubic root of 6689652941 is about 1884.2326676746.

The spelling of 6689652941 in words is "six billion, six hundred eighty-nine million, six hundred fifty-two thousand, nine hundred forty-one".