11889334889789 has 16 divisors (see below), whose sum is σ = 13630861426176. Its totient is φ = 10158605088000.

The previous prime is 11889334889743. The next prime is 11889334889827. The reversal of 11889334889789 is 98798843398811.

11889334889789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11889334889789 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 11889334889789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11889334889189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2749799 + ... + 5598219.

It is an arithmetic number, because the mean of its divisors is an integer number (851928839136).

Almost surely, 2^{11889334889789} is an apocalyptic number.

It is an amenable number.

11889334889789 is a deficient number, since it is larger than the sum of its proper divisors (1741526536387).

11889334889789 is a wasteful number, since it uses less digits than its factorization.

11889334889789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2850316.

The product of its digits is 6019743744, while the sum is 86.

The spelling of 11889334889789 in words is "eleven trillion, eight hundred eighty-nine billion, three hundred thirty-four million, eight hundred eighty-nine thousand, seven hundred eighty-nine".