9885779795 has 4 divisors (see below), whose sum is σ = 11862935760. Its totient is φ = 7908623832.

The previous prime is 9885779747. The next prime is 9885779797. The reversal of 9885779795 is 5979775889.

9885779795 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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9885779795 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9885779797) 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 3 ways as a sum of consecutive naturals, for example, 988577975 + ... + 988577984.

It is an arithmetic number, because the mean of its divisors is an integer number (2965733940).

Almost surely, 2^9885779795 is an apocalyptic number.

9885779795 is a deficient number, since it is larger than the sum of its proper divisors (1977155965).

9885779795 is a wasteful number, since it uses less digits than its factorization.

9885779795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977155964.

The product of its digits is 400075200, while the sum is 74.

The square root of 9885779795 is about 99427.2588126616. The cubic root of 9885779795 is about 2146.2005942654.

The spelling of 9885779795 in words is "nine billion, eight hundred eighty-five million, seven hundred seventy-nine thousand, seven hundred ninety-five".