11858706909 has 24 divisors (see below), whose sum is σ = 20301328320. Its totient is φ = 6776402976.

The previous prime is 11858706901. The next prime is 11858706929. The reversal of 11858706909 is 90960785811.

11858706909 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 11858706909 - 2³ = 11858706901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11858706901) 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 23 ways as a sum of consecutive naturals, for example, 3484104 + ... + 3487505.

It is an arithmetic number, because the mean of its divisors is an integer number (845888680).

Almost surely, 2^11858706909 is an apocalyptic number.

It is an amenable number.

11858706909 is a deficient number, since it is larger than the sum of its proper divisors (8442621411).

11858706909 is an frugal number, since it uses more digits than its factorization.

11858706909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6971631 (or 6971619 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 54.

The spelling of 11858706909 in words is "eleven billion, eight hundred fifty-eight million, seven hundred six thousand, nine hundred nine".