13116821408629 has 2 divisors, whose sum is σ = 13116821408630. Its totient is φ = 13116821408628.

The previous prime is 13116821408549. The next prime is 13116821408641. The reversal of 13116821408629 is 92680412861131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7214219964900 + 5902601443729 = 2685930^2 + 2429527^2 .

It is a cyclic number.

It is not a de Polignac number, because 13116821408629 - 2⁷ = 13116821408501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13116821400629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6558410704314 + 6558410704315.

It is an arithmetic number, because the mean of its divisors is an integer number (6558410704315).

Almost surely, 2^{13116821408629} is an apocalyptic number.

It is an amenable number.

13116821408629 is a deficient number, since it is larger than the sum of its proper divisors (1).

13116821408629 is an equidigital number, since it uses as much as digits as its factorization.

13116821408629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 995328, while the sum is 52.

The spelling of 13116821408629 in words is "thirteen trillion, one hundred sixteen billion, eight hundred twenty-one million, four hundred eight thousand, six hundred twenty-nine".