12799894439 has 8 divisors (see below), whose sum is σ = 13553953200. Its totient is φ = 12045960576.

The previous prime is 12799894421. The next prime is 12799894489. The reversal of 12799894439 is 93449899721.

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

It is a cyclic number.

It is not a de Polignac number, because 12799894439 - 2²⁰ = 12798845863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12799894489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254612 + ... + 300710.

It is an arithmetic number, because the mean of its divisors is an integer number (1694244150).

Almost surely, 2^12799894439 is an apocalyptic number.

12799894439 is a deficient number, since it is larger than the sum of its proper divisors (754058761).

12799894439 is a wasteful number, since it uses less digits than its factorization.

12799894439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62449.

The product of its digits is 35271936, while the sum is 65.

The spelling of 12799894439 in words is "twelve billion, seven hundred ninety-nine million, eight hundred ninety-four thousand, four hundred thirty-nine".