13843366409 has 2 divisors, whose sum is σ = 13843366410. Its totient is φ = 13843366408.

The previous prime is 13843366393. The next prime is 13843366457. The reversal of 13843366409 is 90466334831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12090102025 + 1753264384 = 109955^2 + 41872^2 .

It is a cyclic number.

It is not a de Polignac number, because 13843366409 - 2⁴ = 13843366393 is a prime.

It is not a weakly prime, because it can be changed into another prime (13843366469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6921683204 + 6921683205.

It is an arithmetic number, because the mean of its divisors is an integer number (6921683205).

Almost surely, 2^13843366409 is an apocalyptic number.

It is an amenable number.

13843366409 is a deficient number, since it is larger than the sum of its proper divisors (1).

13843366409 is an equidigital number, since it uses as much as digits as its factorization.

13843366409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1119744, while the sum is 47.

The spelling of 13843366409 in words is "thirteen billion, eight hundred forty-three million, three hundred sixty-six thousand, four hundred nine".