12969793225 has 9 divisors (see below), whose sum is σ = 16083249717. Its totient is φ = 10375379040.

The previous prime is 12969793211. The next prime is 12969793259. The reversal of 12969793225 is 52239796921.

The square root of 12969793225 is 113885.

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

It can be written as a sum of positive squares in 4 ways, for example, as 1315295289 + 11654497936 = 36267^2 + 107956^2 .

It is not a de Polignac number, because 12969793225 - 2¹⁹ = 12969268937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 558037 + ... + 580813.

Almost surely, 2^12969793225 is an apocalyptic number.

12969793225 is the 113885-th square number.

12969793225 is the 56943-rd centered octagonal number.

It is an amenable number.

12969793225 is a deficient number, since it is larger than the sum of its proper divisors (3113456492).

12969793225 is an frugal number, since it uses more digits than its factorization.

12969793225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45564 (or 22782 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 55.

The spelling of 12969793225 in words is "twelve billion, nine hundred sixty-nine million, seven hundred ninety-three thousand, two hundred twenty-five".