12586867080449 has 2 divisors, whose sum is σ = 12586867080450. Its totient is φ = 12586867080448.

The previous prime is 12586867080439. The next prime is 12586867080451. The reversal of 12586867080449 is 94408076868521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7530633640000 + 5056233440449 = 2744200^2 + 2248607^2 .

It is a cyclic number.

It is not a de Polignac number, because 12586867080449 - 2¹² = 12586867076353 is a prime.

Together with 12586867080451, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12586867080439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6293433540224 + 6293433540225.

It is an arithmetic number, because the mean of its divisors is an integer number (6293433540225).

Almost surely, 2^{12586867080449} is an apocalyptic number.

It is an amenable number.

12586867080449 is a deficient number, since it is larger than the sum of its proper divisors (1).

12586867080449 is an equidigital number, since it uses as much as digits as its factorization.

12586867080449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 185794560, while the sum is 68.

The spelling of 12586867080449 in words is "twelve trillion, five hundred eighty-six billion, eight hundred sixty-seven million, eighty thousand, four hundred forty-nine".