12945885338 has 8 divisors (see below), whose sum is σ = 19517401332. Its totient is φ = 6440084896.

The previous prime is 12945885313. The next prime is 12945885361. The reversal of 12945885338 is 83358854921.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12687093769 + 258791569 = 112637^2 + 16087^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16428395 + ... + 16429182.

Almost surely, 2^12945885338 is an apocalyptic number.

12945885338 is a deficient number, since it is larger than the sum of its proper divisors (6571515994).

12945885338 is a wasteful number, since it uses less digits than its factorization.

12945885338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32857776.

The product of its digits is 8294400, while the sum is 56.

The spelling of 12945885338 in words is "twelve billion, nine hundred forty-five million, eight hundred eighty-five thousand, three hundred thirty-eight".