12079987867 has 2 divisors, whose sum is σ = 12079987868. Its totient is φ = 12079987866.

The previous prime is 12079987859. The next prime is 12079987879. The reversal of 12079987867 is 76878997021.

It is a happy number.

12079987867 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 an emirp because it is prime and its reverse (76878997021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12079987867 - 2³ = 12079987859 is a prime.

It is a super-2 number, since 2×12079987867² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12079987799 and 12079987808.

It is not a weakly prime, because it can be changed into another prime (12079987817) 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, 6039993933 + 6039993934.

It is an arithmetic number, because the mean of its divisors is an integer number (6039993934).

Almost surely, 2^12079987867 is an apocalyptic number.

12079987867 is a deficient number, since it is larger than the sum of its proper divisors (1).

12079987867 is an equidigital number, since it uses as much as digits as its factorization.

12079987867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21337344, while the sum is 64.

The spelling of 12079987867 in words is "twelve billion, seventy-nine million, nine hundred eighty-seven thousand, eight hundred sixty-seven".