11889733689 has 32 divisors (see below), whose sum is σ = 18419097600. Its totient is φ = 7565841360.

The previous prime is 11889733633. The next prime is 11889733703. The reversal of 11889733689 is 98633798811.

11889733689 is a `hidden beast` number, since 1 + 188 + 97 + 3 + 368 + 9 = 666.

11889733689 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 11889733689 - 2⁷ = 11889733561 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (11889773689) 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 31 ways as a sum of consecutive naturals, for example, 277474 + ... + 317444.

It is an arithmetic number, because the mean of its divisors is an integer number (575596800).

Almost surely, 2^11889733689 is an apocalyptic number.

It is an amenable number.

11889733689 is a deficient number, since it is larger than the sum of its proper divisors (6529363911).

11889733689 is a wasteful number, since it uses less digits than its factorization.

11889733689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40482 (or 40476 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 63.

The spelling of 11889733689 in words is "eleven billion, eight hundred eighty-nine million, seven hundred thirty-three thousand, six hundred eighty-nine".