12845782049 has 8 divisors (see below), whose sum is σ = 13406490240. Its totient is φ = 12285256896.

The previous prime is 12845782007. The next prime is 12845782069. The reversal of 12845782049 is 94028754821.

12845782049 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 a de Polignac number, because none of the positive numbers 2^k-12845782049 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12845781988 and 12845782006.

It is not an unprimeable number, because it can be changed into a prime (12845782069) 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, 108812 + ... + 193730.

It is an arithmetic number, because the mean of its divisors is an integer number (1675811280).

Almost surely, 2^12845782049 is an apocalyptic number.

It is an amenable number.

12845782049 is a deficient number, since it is larger than the sum of its proper divisors (560708191).

12845782049 is an equidigital number, since it uses as much as digits as its factorization.

12845782049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91519.

The product of its (nonzero) digits is 1290240, while the sum is 50.

The spelling of 12845782049 in words is "twelve billion, eight hundred forty-five million, seven hundred eighty-two thousand, forty-nine".