11509688316 has 48 divisors (see below), whose sum is σ = 31750871040. Its totient is φ = 3175085760.

The previous prime is 11509688297. The next prime is 11509688321. The reversal of 11509688316 is 61388690511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2359980 + ... + 2364851.

It is an arithmetic number, because the mean of its divisors is an integer number (661476480).

Almost surely, 2^11509688316 is an apocalyptic number.

It is an amenable number.

11509688316 is an abundant number, since it is smaller than the sum of its proper divisors (20241182724).

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

11509688316 is a wasteful number, since it uses less digits than its factorization.

11509688316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4724874 (or 4724872 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 48.

The spelling of 11509688316 in words is "eleven billion, five hundred nine million, six hundred eighty-eight thousand, three hundred sixteen".