6412809217 has 2 divisors, whose sum is σ = 6412809218. Its totient is φ = 6412809216.

The previous prime is 6412809211. The next prime is 6412809307. The reversal of 6412809217 is 7129082146.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6049106176 + 363703041 = 77776^2 + 19071^2 .

It is a cyclic number.

It is not a de Polignac number, because 6412809217 - 2⁷ = 6412809089 is a prime.

It is a super-2 number, since 2×6412809217² = 82248244107280306178, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6412809217.

It is not a weakly prime, because it can be changed into another prime (6412809211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3206404608 + 3206404609.

It is an arithmetic number, because the mean of its divisors is an integer number (3206404609).

Almost surely, 2^6412809217 is an apocalyptic number.

It is an amenable number.

6412809217 is a deficient number, since it is larger than the sum of its proper divisors (1).

6412809217 is an equidigital number, since it uses as much as digits as its factorization.

6412809217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 6412809217 is about 80080.0175886594. The cubic root of 6412809217 is about 1857.8733563066.

The spelling of 6412809217 in words is "six billion, four hundred twelve million, eight hundred nine thousand, two hundred seventeen".