11959609194 has 24 divisors (see below), whose sum is σ = 27905755332. Its totient is φ = 3679879680.

The previous prime is 11959609171. The next prime is 11959609213. The reversal of 11959609194 is 49190695911.

It is a happy number.

11959609194 is a `hidden beast` number, since 1 + 19 + 5 + 9 + 609 + 19 + 4 = 666.

11959609194 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11938403169 + 21206025 = 109263^2 + 4605^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11959609194.

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 11 ways as a sum of consecutive naturals, for example, 25554487 + ... + 25554954.

Almost surely, 2^11959609194 is an apocalyptic number.

11959609194 is an abundant number, since it is smaller than the sum of its proper divisors (15946146138).

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

11959609194 is a wasteful number, since it uses less digits than its factorization.

11959609194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51109462 (or 51109459 counting only the distinct ones).

The product of its (nonzero) digits is 787320, while the sum is 54.

The spelling of 11959609194 in words is "eleven billion, nine hundred fifty-nine million, six hundred nine thousand, one hundred ninety-four".