9894664989 has 96 divisors (see below), whose sum is σ = 17120802816. Its totient is φ = 5438568960.

The previous prime is 9894664963. The next prime is 9894664993.

It is a happy number.

9894664989 is a `hidden beast` number, since 9 + 89 + 466 + 4 + 9 + 89 = 666.

9894664989 is nontrivially palindromic in base 10.

9894664989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9894664989 - 2⁵ = 9894664957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9894164989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5298834 + ... + 5300700.

It is an arithmetic number, because the mean of its divisors is an integer number (178341696).

Almost surely, 2^9894664989 is an apocalyptic number.

9894664989 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

It is an amenable number.

9894664989 is a deficient number, since it is larger than the sum of its proper divisors (7226137827).

9894664989 is a wasteful number, since it uses less digits than its factorization.

9894664989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015 (or 2012 counting only the distinct ones).

The product of its digits is 241864704, while the sum is 72.

The square root of 9894664989 is about 99471.9306588547. The cubic root of 9894664989 is about 2146.8433929381.

The spelling of 9894664989 in words is "nine billion, eight hundred ninety-four million, six hundred sixty-four thousand, nine hundred eighty-nine".