1108635828409 has 2 divisors, whose sum is σ = 1108635828410. Its totient is φ = 1108635828408.

The previous prime is 1108635828361. The next prime is 1108635828499. The reversal of 1108635828409 is 9048285368011.

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., 883459005625 + 225176822784 = 939925^2 + 474528^2 .

It is a cyclic number.

It is not a de Polignac number, because 1108635828409 - 2⁷ = 1108635828281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1108635828409.

It is not a weakly prime, because it can be changed into another prime (1108635828499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 554317914204 + 554317914205.

It is an arithmetic number, because the mean of its divisors is an integer number (554317914205).

Almost surely, 2^{1108635828409} is an apocalyptic number.

It is an amenable number.

1108635828409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1108635828409 is an equidigital number, since it uses as much as digits as its factorization.

1108635828409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3317760, while the sum is 55.

The spelling of 1108635828409 in words is "one trillion, one hundred eight billion, six hundred thirty-five million, eight hundred twenty-eight thousand, four hundred nine".