9421809605 has 32 divisors (see below), whose sum is σ = 12379288320. Its totient is φ = 6841981440.

The previous prime is 9421809599. The next prime is 9421809613. The reversal of 9421809605 is 5069081249.

9421809605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9421809605 - 2⁴ = 9421809589 is a prime.

It is a Curzon number.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 1700690 + ... + 1706220.

It is an arithmetic number, because the mean of its divisors is an integer number (386852760).

Almost surely, 2^9421809605 is an apocalyptic number.

It is an amenable number.

9421809605 is a deficient number, since it is larger than the sum of its proper divisors (2957478715).

9421809605 is a wasteful number, since it uses less digits than its factorization.

9421809605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5981.

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 9421809605 is about 97066.0064337665. The cubic root of 9421809605 is about 2112.0852385542.

The spelling of 9421809605 in words is "nine billion, four hundred twenty-one million, eight hundred nine thousand, six hundred five".