11440450405309 has 2 divisors, whose sum is σ = 11440450405310. Its totient is φ = 11440450405308.

The previous prime is 11440450405247. The next prime is 11440450405379. The reversal of 11440450405309 is 90350405404411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7173424805625 + 4267025599684 = 2678325^2 + 2065678^2 .

It is a cyclic number.

It is not a de Polignac number, because 11440450405309 - 2⁹ = 11440450404797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11440450405379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5720225202654 + 5720225202655.

It is an arithmetic number, because the mean of its divisors is an integer number (5720225202655).

Almost surely, 2^{11440450405309} is an apocalyptic number.

It is an amenable number.

11440450405309 is a deficient number, since it is larger than the sum of its proper divisors (1).

11440450405309 is an equidigital number, since it uses as much as digits as its factorization.

11440450405309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 11440450405309 in words is "eleven trillion, four hundred forty billion, four hundred fifty million, four hundred five thousand, three hundred nine".