9805906996 has 12 divisors (see below), whose sum is σ = 17752073220. Its totient is φ = 4733886080.

The previous prime is 9805906919. The next prime is 9805906997. The reversal of 9805906996 is 6996095089.

It can be written as a sum of positive squares in 2 ways, for example, as 1952402596 + 7853504400 = 44186^2 + 88620^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9805906997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42266725 + ... + 42266956.

It is an arithmetic number, because the mean of its divisors is an integer number (1479339435).

Almost surely, 2^9805906996 is an apocalyptic number.

It is an amenable number.

9805906996 is a deficient number, since it is larger than the sum of its proper divisors (7946166224).

9805906996 is a wasteful number, since it uses less digits than its factorization.

9805906996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84533714 (or 84533712 counting only the distinct ones).

The product of its (nonzero) digits is 9447840, while the sum is 61.

The square root of 9805906996 is about 99024.7797068996. The cubic root of 9805906996 is about 2140.4048347565.

The spelling of 9805906996 in words is "nine billion, eight hundred five million, nine hundred six thousand, nine hundred ninety-six".