989297963689 has 32 divisors (see below), whose sum is σ = 1204078118400. Its totient is φ = 810955252800.

The previous prime is 989297963681. The next prime is 989297963713. The reversal of 989297963689 is 986369792989.

989297963689 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 989297963689 - 2³ = 989297963681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (989297963681) 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, 77155899 + ... + 77168719.

It is an arithmetic number, because the mean of its divisors is an integer number (37627441200).

Almost surely, 2^989297963689 is an apocalyptic number.

It is an amenable number.

989297963689 is a deficient number, since it is larger than the sum of its proper divisors (214780154711).

989297963689 is a wasteful number, since it uses less digits than its factorization.

989297963689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22646 (or 22632 counting only the distinct ones).

The product of its digits is 5714053632, while the sum is 85.

The spelling of 989297963689 in words is "nine hundred eighty-nine billion, two hundred ninety-seven million, nine hundred sixty-three thousand, six hundred eighty-nine".