6464253217 has 2 divisors, whose sum is σ = 6464253218. Its totient is φ = 6464253216.

The previous prime is 6464253209. The next prime is 6464253277. The reversal of 6464253217 is 7123524646.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6463999201 + 254016 = 80399^2 + 504^2 .

It is a cyclic number.

It is not a de Polignac number, because 6464253217 - 2³ = 6464253209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6464253217.

It is not a weakly prime, because it can be changed into another prime (6464253277) 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, 3232126608 + 3232126609.

It is an arithmetic number, because the mean of its divisors is an integer number (3232126609).

Almost surely, 2^6464253217 is an apocalyptic number.

It is an amenable number.

6464253217 is a deficient number, since it is larger than the sum of its proper divisors (1).

6464253217 is an equidigital number, since it uses as much as digits as its factorization.

6464253217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 40.

The square root of 6464253217 is about 80400.5797056215. The cubic root of 6464253217 is about 1862.8281269371.

The spelling of 6464253217 in words is "six billion, four hundred sixty-four million, two hundred fifty-three thousand, two hundred seventeen".