11691306708 has 96 divisors (see below), whose sum is σ = 30441277440. Its totient is φ = 3470630400.

The previous prime is 11691306707. The next prime is 11691306713. The reversal of 11691306708 is 80760319611.

It is a self number, because there is not a number n which added to its sum of digits gives 11691306708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11691306707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4971733 + ... + 4974083.

It is an arithmetic number, because the mean of its divisors is an integer number (317096640).

Almost surely, 2^11691306708 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11691306708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15220638720).

11691306708 is an abundant number, since it is smaller than the sum of its proper divisors (18749970732).

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

11691306708 is a wasteful number, since it uses less digits than its factorization.

11691306708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3677 (or 3675 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The spelling of 11691306708 in words is "eleven billion, six hundred ninety-one million, three hundred six thousand, seven hundred eight".