9689776880 has 40 divisors (see below), whose sum is σ = 25747122912. Its totient is φ = 3322209024.

The previous prime is 9689776847. The next prime is 9689776937. The reversal of 9689776880 is 886779869.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 9689776880.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8651027 + ... + 8652146.

Almost surely, 2^9689776880 is an apocalyptic number.

It is an amenable number.

9689776880 is an abundant number, since it is smaller than the sum of its proper divisors (16057346032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9689776880 is a wasteful number, since it uses less digits than its factorization.

9689776880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17303193 (or 17303187 counting only the distinct ones).

The product of its (nonzero) digits is 73156608, while the sum is 68.

The square root of 9689776880 is about 98436.6643075638. The cubic root of 9689776880 is about 2131.9217434817.

The spelling of 9689776880 in words is "nine billion, six hundred eighty-nine million, seven hundred seventy-six thousand, eight hundred eighty".