3443403321509 has 2 divisors, whose sum is σ = 3443403321510. Its totient is φ = 3443403321508.

The previous prime is 3443403321487. The next prime is 3443403321551. The reversal of 3443403321509 is 9051233043443.

3443403321509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3393321357409 + 50081964100 = 1842097^2 + 223790^2 .

It is a cyclic number.

It is not a de Polignac number, because 3443403321509 - 2¹² = 3443403317413 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3443403321109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1721701660754 + 1721701660755.

It is an arithmetic number, because the mean of its divisors is an integer number (1721701660755).

Almost surely, 2^{3443403321509} is an apocalyptic number.

It is an amenable number.

3443403321509 is a deficient number, since it is larger than the sum of its proper divisors (1).

3443403321509 is an equidigital number, since it uses as much as digits as its factorization.

3443403321509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 41.

The spelling of 3443403321509 in words is "three trillion, four hundred forty-three billion, four hundred three million, three hundred twenty-one thousand, five hundred nine".