9109685345 has 4 divisors (see below), whose sum is σ = 10931622420. Its totient is φ = 7287748272.

The previous prime is 9109685339. The next prime is 9109685357. The reversal of 9109685345 is 5435869019.

It is a happy number.

9109685345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5435869019 = 7 ⋅776552717.

It can be written as a sum of positive squares in 2 ways, for example, as 2613970129 + 6495715216 = 51127^2 + 80596^2 .

It is a cyclic number.

It is not a de Polignac number, because 9109685345 - 2⁶ = 9109685281 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 9109685293 and 9109685302.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 910968530 + ... + 910968539.

It is an arithmetic number, because the mean of its divisors is an integer number (2732905605).

Almost surely, 2^9109685345 is an apocalyptic number.

It is an amenable number.

9109685345 is a deficient number, since it is larger than the sum of its proper divisors (1821937075).

9109685345 is a wasteful number, since it uses less digits than its factorization.

9109685345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821937074.

The product of its (nonzero) digits is 1166400, while the sum is 50.

The square root of 9109685345 is about 95444.6716427900. The cubic root of 9109685345 is about 2088.4998999560.

The spelling of 9109685345 in words is "nine billion, one hundred nine million, six hundred eighty-five thousand, three hundred forty-five".