196889548689 has 20 divisors (see below), whose sum is σ = 296434868224. Its totient is φ = 130226151384.

The previous prime is 196889548663. The next prime is 196889548711. The reversal of 196889548689 is 986845988691.

196889548689 is a `hidden beast` number, since 1 + 9 + 6 + 8 + 8 + 9 + 548 + 68 + 9 = 666.

196889548689 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 196889548689 - 2¹¹ = 196889546641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196889548189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9559537 + ... + 9580110.

Almost surely, 2^196889548689 is an apocalyptic number.

It is an amenable number.

196889548689 is a deficient number, since it is larger than the sum of its proper divisors (99545319535).

196889548689 is a wasteful number, since it uses less digits than its factorization.

196889548689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19139786 (or 19139777 counting only the distinct ones).

The product of its digits is 2149908480, while the sum is 81.

The spelling of 196889548689 in words is "one hundred ninety-six billion, eight hundred eighty-nine million, five hundred forty-eight thousand, six hundred eighty-nine".