13425161689 has 9 divisors (see below), whose sum is σ = 13562216703. Its totient is φ = 13289481432.

The previous prime is 13425161621. The next prime is 13425161747. The reversal of 13425161689 is 98616152431.

The square root of 13425161689 is 115867.

It is a perfect power (a square), and thus also a powerful number.

13425161689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9357273289 + 4067888400 = 96733^2 + 63780^2 .

It is not a de Polignac number, because 13425161689 - 2²³ = 13416773081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13425161089) 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 in 8 ways as a sum of consecutive naturals, for example, 12628972 + ... + 12630034.

It is an arithmetic number, because the mean of its divisors is an integer number (1506912967).

Almost surely, 2^13425161689 is an apocalyptic number.

13425161689 is the 115867-th square number.

13425161689 is the 57934-th centered octagonal number.

It is an amenable number.

13425161689 is a deficient number, since it is larger than the sum of its proper divisors (137055014).

13425161689 is an frugal number, since it uses more digits than its factorization.

13425161689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2344 (or 1172 counting only the distinct ones).

The product of its digits is 311040, while the sum is 46.

The spelling of 13425161689 in words is "thirteen billion, four hundred twenty-five million, one hundred sixty-one thousand, six hundred eighty-nine".