11861930238 has 16 divisors (see below), whose sum is σ = 23827460880. Its totient is φ = 3936710016.

The previous prime is 11861930219. The next prime is 11861930243. The reversal of 11861930238 is 83203916811.

11861930238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 11861930238.

It is a congruent number.

It is an unprimeable number.

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, 4315195 + ... + 4317942.

It is an arithmetic number, because the mean of its divisors is an integer number (1489216305).

Almost surely, 2^11861930238 is an apocalyptic number.

11861930238 is an abundant number, since it is smaller than the sum of its proper divisors (11965530642).

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

11861930238 is a wasteful number, since it uses less digits than its factorization.

11861930238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8633371.

The product of its (nonzero) digits is 62208, while the sum is 42.

The spelling of 11861930238 in words is "eleven billion, eight hundred sixty-one million, nine hundred thirty thousand, two hundred thirty-eight".