12634986123249 has 16 divisors (see below), whose sum is σ = 19269132532608. Its totient is φ = 7214059441152.

The previous prime is 12634986123223. The next prime is 12634986123251. The reversal of 12634986123249 is 94232168943621.

It is a happy number.

It is not a de Polignac number, because 12634986123249 - 2¹³ = 12634986115057 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12634986123192 and 12634986123201.

It is not an unprimeable number, because it can be changed into a prime (12634986123289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247166722 + ... + 247217835.

It is an arithmetic number, because the mean of its divisors is an integer number (1204320783288).

Almost surely, 2^{12634986123249} is an apocalyptic number.

It is an amenable number.

12634986123249 is a deficient number, since it is larger than the sum of its proper divisors (6634146409359).

12634986123249 is a wasteful number, since it uses less digits than its factorization.

12634986123249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494385784.

The product of its digits is 26873856, while the sum is 60.

The spelling of 12634986123249 in words is "twelve trillion, six hundred thirty-four billion, nine hundred eighty-six million, one hundred twenty-three thousand, two hundred forty-nine".