4064406509 has 2 divisors, whose sum is σ = 4064406510. Its totient is φ = 4064406508.

The previous prime is 4064406503. The next prime is 4064406551. The reversal of 4064406509 is 9056044604.

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., 3998032900 + 66373609 = 63230^2 + 8147^2 .

It is a cyclic number.

It is not a de Polignac number, because 4064406509 - 2⁸ = 4064406253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4064406503) 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, 2032203254 + 2032203255.

It is an arithmetic number, because the mean of its divisors is an integer number (2032203255).

Almost surely, 2^4064406509 is an apocalyptic number.

It is an amenable number.

4064406509 is a deficient number, since it is larger than the sum of its proper divisors (1).

4064406509 is an equidigital number, since it uses as much as digits as its factorization.

4064406509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 4064406509 is about 63752.6980527099. The cubic root of 4064406509 is about 1595.8756418715.

The spelling of 4064406509 in words is "four billion, sixty-four million, four hundred six thousand, five hundred nine".