12821950259 has 8 divisors (see below), whose sum is σ = 12853219440. Its totient is φ = 12790720800.

The previous prime is 12821950241. The next prime is 12821950283. The reversal of 12821950259 is 95205912821.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12821950259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12821952259) 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, 696149 + ... + 714329.

It is an arithmetic number, because the mean of its divisors is an integer number (1606652430).

Almost surely, 2^12821950259 is an apocalyptic number.

12821950259 is a deficient number, since it is larger than the sum of its proper divisors (31269181).

12821950259 is an equidigital number, since it uses as much as digits as its factorization.

12821950259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19861.

The product of its (nonzero) digits is 129600, while the sum is 44.

The spelling of 12821950259 in words is "twelve billion, eight hundred twenty-one million, nine hundred fifty thousand, two hundred fifty-nine".