11786666667 has 4 divisors (see below), whose sum is σ = 15715555560. Its totient is φ = 7857777776.

The previous prime is 11786666629. The next prime is 11786666741. The reversal of 11786666667 is 76666668711.

11786666667 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 is a cyclic number.

It is not a de Polignac number, because 11786666667 - 2¹⁴ = 11786650283 is a prime.

It is a super-2 number, since 2×11786666667² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11786666667.

It is not an unprimeable number, because it can be changed into a prime (11786666467) 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 3 ways as a sum of consecutive naturals, for example, 1964444442 + ... + 1964444447.

It is an arithmetic number, because the mean of its divisors is an integer number (3928888890).

Almost surely, 2^11786666667 is an apocalyptic number.

11786666667 is a deficient number, since it is larger than the sum of its proper divisors (3928888893).

11786666667 is an equidigital number, since it uses as much as digits as its factorization.

11786666667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3928888892.

The product of its digits is 18289152, while the sum is 60.

The spelling of 11786666667 in words is "eleven billion, seven hundred eighty-six million, six hundred sixty-six thousand, six hundred sixty-seven".