9905775027 has 12 divisors (see below), whose sum is σ = 13358294280. Its totient is φ = 6528577440.

The previous prime is 9905774981. The next prime is 9905775031. The reversal of 9905775027 is 7205775099.

9905775027 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 9905775027 - 2⁸ = 9905774771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9905775227) 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 in 11 ways as a sum of consecutive naturals, for example, 1623252 + ... + 1629342.

It is an arithmetic number, because the mean of its divisors is an integer number (1113191190).

Almost surely, 2^9905775027 is an apocalyptic number.

9905775027 is a deficient number, since it is larger than the sum of its proper divisors (3452519253).

9905775027 is an frugal number, since it uses more digits than its factorization.

9905775027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12274 (or 6183 counting only the distinct ones).

The product of its (nonzero) digits is 1389150, while the sum is 51.

The square root of 9905775027 is about 99527.7600823007. The cubic root of 9905775027 is about 2147.6466065956.

The spelling of 9905775027 in words is "nine billion, nine hundred five million, seven hundred seventy-five thousand, twenty-seven".