12127789679 has 2 divisors, whose sum is σ = 12127789680. Its totient is φ = 12127789678.

The previous prime is 12127789643. The next prime is 12127789691. The reversal of 12127789679 is 97698772121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12127789679 - 2¹² = 12127785583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12127782679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6063894839 + 6063894840.

It is an arithmetic number, because the mean of its divisors is an integer number (6063894840).

Almost surely, 2^12127789679 is an apocalyptic number.

12127789679 is a deficient number, since it is larger than the sum of its proper divisors (1).

12127789679 is an equidigital number, since it uses as much as digits as its factorization.

12127789679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5334336, while the sum is 59.

The spelling of 12127789679 in words is "twelve billion, one hundred twenty-seven million, seven hundred eighty-nine thousand, six hundred seventy-nine".