6428324569 has 2 divisors, whose sum is σ = 6428324570. Its totient is φ = 6428324568.

The previous prime is 6428324543. The next prime is 6428324729. The reversal of 6428324569 is 9654238246.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4271929600 + 2156394969 = 65360^2 + 46437^2 .

It is a cyclic number.

It is not a de Polignac number, because 6428324569 - 2⁹ = 6428324057 is a prime.

It is a super-2 number, since 2×6428324569² = 82646713528818071522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6428324069) 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, 3214162284 + 3214162285.

It is an arithmetic number, because the mean of its divisors is an integer number (3214162285).

Almost surely, 2^6428324569 is an apocalyptic number.

It is an amenable number.

6428324569 is a deficient number, since it is larger than the sum of its proper divisors (1).

6428324569 is an equidigital number, since it uses as much as digits as its factorization.

6428324569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2488320, while the sum is 49.

The square root of 6428324569 is about 80176.8331190500. The cubic root of 6428324569 is about 1859.3704819377.

The spelling of 6428324569 in words is "six billion, four hundred twenty-eight million, three hundred twenty-four thousand, five hundred sixty-nine".