12894858085 has 4 divisors (see below), whose sum is σ = 15473829708. Its totient is φ = 10315886464.

The previous prime is 12894858083. The next prime is 12894858127. The reversal of 12894858085 is 58085849821.

12894858085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6523146756 + 6371711329 = 80766^2 + 79823^2 .

It is a cyclic number.

It is not a de Polignac number, because 12894858085 - 2¹ = 12894858083 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12894858083) 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 3 ways as a sum of consecutive naturals, for example, 1289485804 + ... + 1289485813.

It is an arithmetic number, because the mean of its divisors is an integer number (3868457427).

Almost surely, 2^12894858085 is an apocalyptic number.

It is an amenable number.

12894858085 is a deficient number, since it is larger than the sum of its proper divisors (2578971623).

12894858085 is an equidigital number, since it uses as much as digits as its factorization.

12894858085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2578971622.

The product of its (nonzero) digits is 7372800, while the sum is 58.

The spelling of 12894858085 in words is "twelve billion, eight hundred ninety-four million, eight hundred fifty-eight thousand, eighty-five".