11966389679 has 2 divisors, whose sum is σ = 11966389680. Its totient is φ = 11966389678.

The previous prime is 11966389663. The next prime is 11966389717. The reversal of 11966389679 is 97698366911.

11966389679 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11966389679 - 2⁴ = 11966389663 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11966389079) 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 as a sum of consecutive naturals, namely, 5983194839 + 5983194840.

It is an arithmetic number, because the mean of its divisors is an integer number (5983194840).

Almost surely, 2^11966389679 is an apocalyptic number.

11966389679 is a deficient number, since it is larger than the sum of its proper divisors (1).

11966389679 is an equidigital number, since it uses as much as digits as its factorization.

11966389679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26453952, while the sum is 65.

The spelling of 11966389679 in words is "eleven billion, nine hundred sixty-six million, three hundred eighty-nine thousand, six hundred seventy-nine".