13767688661 has 8 divisors (see below), whose sum is σ = 13987802304. Its totient is φ = 13548866560.

The previous prime is 13767688637. The next prime is 13767688679. The reversal of 13767688661 is 16688676731.

13767688661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13767688661 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13767688661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13767688631) by changing a digit.

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, 301385 + ... + 344046.

It is an arithmetic number, because the mean of its divisors is an integer number (1748475288).

Almost surely, 2^13767688661 is an apocalyptic number.

It is an amenable number.

13767688661 is a deficient number, since it is larger than the sum of its proper divisors (220113643).

13767688661 is an equidigital number, since it uses as much as digits as its factorization.

13767688661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645771.

The product of its digits is 12192768, while the sum is 59.

The spelling of 13767688661 in words is "thirteen billion, seven hundred sixty-seven million, six hundred eighty-eight thousand, six hundred sixty-one".