12725081461409 has 2 divisors, whose sum is σ = 12725081461410. Its totient is φ = 12725081461408.

The previous prime is 12725081461327. The next prime is 12725081461429. The reversal of 12725081461409 is 90416418052721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8676647728225 + 4048433733184 = 2945615^2 + 2012072^2 .

It is an emirp because it is prime and its reverse (90416418052721) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12725081461409 is a prime.

It is a super-2 number, since 2×12725081461409² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12725081461429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6362540730704 + 6362540730705.

It is an arithmetic number, because the mean of its divisors is an integer number (6362540730705).

Almost surely, 2^{12725081461409} is an apocalyptic number.

It is an amenable number.

12725081461409 is a deficient number, since it is larger than the sum of its proper divisors (1).

12725081461409 is an equidigital number, since it uses as much as digits as its factorization.

12725081461409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 12725081461409 in words is "twelve trillion, seven hundred twenty-five billion, eighty-one million, four hundred sixty-one thousand, four hundred nine".