109075499809 has 2 divisors, whose sum is σ = 109075499810. Its totient is φ = 109075499808.

The previous prime is 109075499777. The next prime is 109075499873. The reversal of 109075499809 is 908994570901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105318422784 + 3757077025 = 324528^2 + 61295^2 .

It is an emirp because it is prime and its reverse (908994570901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109075499809 - 2⁵ = 109075499777 is a prime.

It is not a weakly prime, because it can be changed into another prime (109025499809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54537749904 + 54537749905.

It is an arithmetic number, because the mean of its divisors is an integer number (54537749905).

Almost surely, 2^109075499809 is an apocalyptic number.

It is an amenable number.

109075499809 is a deficient number, since it is larger than the sum of its proper divisors (1).

109075499809 is an equidigital number, since it uses as much as digits as its factorization.

109075499809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7348320, while the sum is 61.

The spelling of 109075499809 in words is "one hundred nine billion, seventy-five million, four hundred ninety-nine thousand, eight hundred nine".