11989230906 has 16 divisors (see below), whose sum is σ = 24563302848. Its totient is φ = 3898936800.

The previous prime is 11989230901. The next prime is 11989230917. The reversal of 11989230906 is 60903298911.

11989230906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11989230901) 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, 24368110 + ... + 24368601.

It is an arithmetic number, because the mean of its divisors is an integer number (1535206428).

Almost surely, 2^11989230906 is an apocalyptic number.

11989230906 is an abundant number, since it is smaller than the sum of its proper divisors (12574071942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11989230906 is a wasteful number, since it uses less digits than its factorization.

11989230906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48736757.

The product of its (nonzero) digits is 209952, while the sum is 48.

The spelling of 11989230906 in words is "eleven billion, nine hundred eighty-nine million, two hundred thirty thousand, nine hundred six".