9669327128 has 16 divisors (see below), whose sum is σ = 18378345480. Its totient is φ = 4768435008.

The previous prime is 9669327119. The next prime is 9669327191. The reversal of 9669327128 is 8217239669.

It is a happy number.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 9669327128.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8277950 + ... + 8279117.

Almost surely, 2^9669327128 is an apocalyptic number.

It is an amenable number.

9669327128 is a deficient number, since it is larger than the sum of its proper divisors (8709018352).

9669327128 is a wasteful number, since it uses less digits than its factorization.

9669327128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16557146 (or 16557142 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 53.

The square root of 9669327128 is about 98332.7368072302. The cubic root of 9669327128 is about 2130.4209185269.

The spelling of 9669327128 in words is "nine billion, six hundred sixty-nine million, three hundred twenty-seven thousand, one hundred twenty-eight".