11789078689 has 8 divisors (see below), whose sum is σ = 12487098888. Its totient is φ = 11091563520.

The previous prime is 11789078681. The next prime is 11789078711. The reversal of 11789078689 is 98687098711.

It is a happy number.

11789078689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2334822400 + 9454256289 = 48320^2 + 97233^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11789078689 - 2³ = 11789078681 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 11789078689.

It is not an unprimeable number, because it can be changed into a prime (11789078681) 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 7 ways as a sum of consecutive naturals, for example, 77652 + ... + 172069.

It is an arithmetic number, because the mean of its divisors is an integer number (1560887361).

Almost surely, 2^11789078689 is an apocalyptic number.

It is an amenable number.

11789078689 is a deficient number, since it is larger than the sum of its proper divisors (698020199).

11789078689 is a wasteful number, since it uses less digits than its factorization.

11789078689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252515.

The product of its (nonzero) digits is 12192768, while the sum is 64.

The spelling of 11789078689 in words is "eleven billion, seven hundred eighty-nine million, seventy-eight thousand, six hundred eighty-nine".