6328197569 has 2 divisors, whose sum is σ = 6328197570. Its totient is φ = 6328197568.

The previous prime is 6328197563. The next prime is 6328197571. The reversal of 6328197569 is 9657918236.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5823521344 + 504676225 = 76312^2 + 22465^2 .

It is a cyclic number.

It is not a de Polignac number, because 6328197569 - 2³² = 2033230273 is a prime.

It is a super-2 number, since 2×6328197569² = 80092168944595019522, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 6328197571, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6328197563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3164098784 + 3164098785.

It is an arithmetic number, because the mean of its divisors is an integer number (3164098785).

Almost surely, 2^6328197569 is an apocalyptic number.

It is an amenable number.

6328197569 is a deficient number, since it is larger than the sum of its proper divisors (1).

6328197569 is an equidigital number, since it uses as much as digits as its factorization.

6328197569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4898880, while the sum is 56.

The square root of 6328197569 is about 79549.9690069079. The cubic root of 6328197569 is about 1849.6661261621. Note that the first 3 decimals are identical.

The spelling of 6328197569 in words is "six billion, three hundred twenty-eight million, one hundred ninety-seven thousand, five hundred sixty-nine".