11509668706 has 4 divisors (see below), whose sum is σ = 17264503062. Its totient is φ = 5754834352.

The previous prime is 11509668697. The next prime is 11509668727. The reversal of 11509668706 is 60786690511.

It is a happy number.

11509668706 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11504493081 + 5175625 = 107259^2 + 2275^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 11509668706.

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 as a sum of consecutive naturals, namely, 2877417175 + ... + 2877417178.

Almost surely, 2^11509668706 is an apocalyptic number.

11509668706 is a deficient number, since it is larger than the sum of its proper divisors (5754834356).

11509668706 is an equidigital number, since it uses as much as digits as its factorization.

11509668706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5754834355.

The product of its (nonzero) digits is 544320, while the sum is 49.

The spelling of 11509668706 in words is "eleven billion, five hundred nine million, six hundred sixty-eight thousand, seven hundred six".