9669811805 has 32 divisors (see below), whose sum is σ = 12182970240. Its totient is φ = 7360485120.

The previous prime is 9669811763. The next prime is 9669811813. The reversal of 9669811805 is 5081189669.

9669811805 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 9669811805 - 2¹⁰ = 9669810781 is a prime.

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, 2017622 + ... + 2022408.

It is an arithmetic number, because the mean of its divisors is an integer number (380717820).

Almost surely, 2^9669811805 is an apocalyptic number.

It is an amenable number.

9669811805 is a deficient number, since it is larger than the sum of its proper divisors (2513158435).

9669811805 is a wasteful number, since it uses less digits than its factorization.

9669811805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5069.

The product of its (nonzero) digits is 933120, while the sum is 53.

The square root of 9669811805 is about 98335.2012506203. The cubic root of 9669811805 is about 2130.4565138602.

The spelling of 9669811805 in words is "nine billion, six hundred sixty-nine million, eight hundred eleven thousand, eight hundred five".