126780725413 has 2 divisors, whose sum is σ = 126780725414. Its totient is φ = 126780725412.

The previous prime is 126780725381. The next prime is 126780725417. The reversal of 126780725413 is 314527087621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123037488289 + 3743237124 = 350767^2 + 61182^2 .

It is a cyclic number.

It is not a de Polignac number, because 126780725413 - 2⁵ = 126780725381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126780725417) 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, 63390362706 + 63390362707.

It is an arithmetic number, because the mean of its divisors is an integer number (63390362707).

Almost surely, 2^126780725413 is an apocalyptic number.

It is an amenable number.

126780725413 is a deficient number, since it is larger than the sum of its proper divisors (1).

126780725413 is an equidigital number, since it uses as much as digits as its factorization.

126780725413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 564480, while the sum is 46.

The spelling of 126780725413 in words is "one hundred twenty-six billion, seven hundred eighty million, seven hundred twenty-five thousand, four hundred thirteen".