9186968989 has 16 divisors (see below), whose sum is σ = 10287377280. Its totient is φ = 8133480000.

The previous prime is 9186968953. The next prime is 9186968993. The reversal of 9186968989 is 9898696819.

It is a cyclic number.

It is not a de Polignac number, because 9186968989 - 2⁹ = 9186968477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9186965989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9 + ... + 135550.

It is an arithmetic number, because the mean of its divisors is an integer number (642961080).

Almost surely, 2^9186968989 is an apocalyptic number.

It is an amenable number.

9186968989 is a deficient number, since it is larger than the sum of its proper divisors (1100408291).

9186968989 is a wasteful number, since it uses less digits than its factorization.

9186968989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135732.

The product of its digits is 120932352, while the sum is 73.

The square root of 9186968989 is about 95848.6775547790. The cubic root of 9186968989 is about 2094.3893306178.

The spelling of 9186968989 in words is "nine billion, one hundred eighty-six million, nine hundred sixty-eight thousand, nine hundred eighty-nine".