9663776806 has 16 divisors (see below), whose sum is σ = 14568228864. Its totient is φ = 4807723464.

The previous prime is 9663776687. The next prime is 9663776813. The reversal of 9663776806 is 6086773669.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1095891 + ... + 1104673.

It is an arithmetic number, because the mean of its divisors is an integer number (910514304).

Almost surely, 2^9663776806 is an apocalyptic number.

9663776806 is a deficient number, since it is larger than the sum of its proper divisors (4904452058).

9663776806 is a wasteful number, since it uses less digits than its factorization.

9663776806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11475.

The product of its (nonzero) digits is 13716864, while the sum is 58.

The square root of 9663776806 is about 98304.5106086186. The cubic root of 9663776806 is about 2130.0132105538.

The spelling of 9663776806 in words is "nine billion, six hundred sixty-three million, seven hundred seventy-six thousand, eight hundred six".