13070528509 has 2 divisors, whose sum is σ = 13070528510. Its totient is φ = 13070528508.

The previous prime is 13070528483. The next prime is 13070528531. The reversal of 13070528509 is 90582507031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13046665284 + 23863225 = 114222^2 + 4885^2 .

It is a cyclic number.

It is not a de Polignac number, because 13070528509 - 2⁵ = 13070528477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13070528579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6535264254 + 6535264255.

It is an arithmetic number, because the mean of its divisors is an integer number (6535264255).

Almost surely, 2^13070528509 is an apocalyptic number.

It is an amenable number.

13070528509 is a deficient number, since it is larger than the sum of its proper divisors (1).

13070528509 is an equidigital number, since it uses as much as digits as its factorization.

13070528509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 13070528509 in words is "thirteen billion, seventy million, five hundred twenty-eight thousand, five hundred nine".