12921575239 has 8 divisors (see below), whose sum is σ = 13044950208. Its totient is φ = 12798720480.

The previous prime is 12921575201. The next prime is 12921575257. The reversal of 12921575239 is 93257512921.

12921575239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12921575239 - 2⁷ = 12921575111 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 (12921575839) 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 7 ways as a sum of consecutive naturals, for example, 80047 + ... + 179584.

It is an arithmetic number, because the mean of its divisors is an integer number (1630618776).

Almost surely, 2^12921575239 is an apocalyptic number.

12921575239 is a deficient number, since it is larger than the sum of its proper divisors (123374969).

12921575239 is a wasteful number, since it uses less digits than its factorization.

12921575239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260105.

The product of its digits is 340200, while the sum is 46.

The spelling of 12921575239 in words is "twelve billion, nine hundred twenty-one million, five hundred seventy-five thousand, two hundred thirty-nine".