12709385441 has 4 divisors (see below), whose sum is σ = 12917736084. Its totient is φ = 12501034800.

The previous prime is 12709385417. The next prime is 12709385449. The reversal of 12709385441 is 14458390721.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4381910416 + 8327475025 = 66196^2 + 91255^2 .

It is a cyclic number.

It is not a de Polignac number, because 12709385441 - 2¹⁰ = 12709384417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12709385392 and 12709385401.

It is not an unprimeable number, because it can be changed into a prime (12709385449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104175230 + ... + 104175351.

It is an arithmetic number, because the mean of its divisors is an integer number (3229434021).

Almost surely, 2^12709385441 is an apocalyptic number.

It is an amenable number.

12709385441 is a deficient number, since it is larger than the sum of its proper divisors (208350643).

12709385441 is an equidigital number, since it uses as much as digits as its factorization.

12709385441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208350642.

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 12709385441 in words is "twelve billion, seven hundred nine million, three hundred eighty-five thousand, four hundred forty-one".