9892442989 has 32 divisors (see below), whose sum is σ = 11726467200. Its totient is φ = 8227042560.

The previous prime is 9892442971. The next prime is 9892442999.

9892442989 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 9892442989 - 2⁵ = 9892442957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9892442989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9892442939) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8808382 + ... + 8809504.

It is an arithmetic number, because the mean of its divisors is an integer number (366452100).

Almost surely, 2^9892442989 is an apocalyptic number.

It is an amenable number.

9892442989 is a deficient number, since it is larger than the sum of its proper divisors (1834024211).

9892442989 is a wasteful number, since it uses less digits than its factorization.

9892442989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645.

The product of its digits is 26873856, while the sum is 64.

The square root of 9892442989 is about 99460.7610517836. The cubic root of 9892442989 is about 2146.6826786154.

The spelling of 9892442989 in words is "nine billion, eight hundred ninety-two million, four hundred forty-two thousand, nine hundred eighty-nine".