1408382660809 has 2 divisors, whose sum is σ = 1408382660810. Its totient is φ = 1408382660808.

The previous prime is 1408382660779. The next prime is 1408382660837. The reversal of 1408382660809 is 9080662838041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 850452840000 + 557929820809 = 922200^2 + 746947^2 .

It is a cyclic number.

It is not a de Polignac number, because 1408382660809 - 2⁵ = 1408382660777 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1408382660809.

It is not a weakly prime, because it can be changed into another prime (1408382660849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 704191330404 + 704191330405.

It is an arithmetic number, because the mean of its divisors is an integer number (704191330405).

Almost surely, 2^{1408382660809} is an apocalyptic number.

It is an amenable number.

1408382660809 is a deficient number, since it is larger than the sum of its proper divisors (1).

1408382660809 is an equidigital number, since it uses as much as digits as its factorization.

1408382660809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3981312, while the sum is 55.

The spelling of 1408382660809 in words is "one trillion, four hundred eight billion, three hundred eighty-two million, six hundred sixty thousand, eight hundred nine".