13591396129 has 2 divisors, whose sum is σ = 13591396130. Its totient is φ = 13591396128.

The previous prime is 13591396067. The next prime is 13591396139. The reversal of 13591396129 is 92169319531.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12910186129 + 681210000 = 113623^2 + 26100^2 .

It is a cyclic number.

It is not a de Polignac number, because 13591396129 - 2⁷ = 13591396001 is a prime.

It is not a weakly prime, because it can be changed into another prime (13591396139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6795698064 + 6795698065.

It is an arithmetic number, because the mean of its divisors is an integer number (6795698065).

Almost surely, 2^13591396129 is an apocalyptic number.

It is an amenable number.

13591396129 is a deficient number, since it is larger than the sum of its proper divisors (1).

13591396129 is an equidigital number, since it uses as much as digits as its factorization.

13591396129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 393660, while the sum is 49.

The spelling of 13591396129 in words is "thirteen billion, five hundred ninety-one million, three hundred ninety-six thousand, one hundred twenty-nine".