12838825116549 has 24 divisors (see below), whose sum is σ = 18570818927232. Its totient is φ = 8547290831040.

The previous prime is 12838825116539. The next prime is 12838825116647. The reversal of 12838825116549 is 94561152883821.

12838825116549 is a `hidden beast` number, since 1 + 2 + 8 + 3 + 8 + 82 + 5 + 1 + 1 + 6 + 549 = 666.

It is not a de Polignac number, because 12838825116549 - 2⁷ = 12838825116421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12838825116539) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34236634 + ... + 34609604.

It is an arithmetic number, because the mean of its divisors is an integer number (773784121968).

Almost surely, 2^{12838825116549} is an apocalyptic number.

It is an amenable number.

12838825116549 is a deficient number, since it is larger than the sum of its proper divisors (5731993810683).

12838825116549 is a wasteful number, since it uses less digits than its factorization.

12838825116549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378297 (or 378294 counting only the distinct ones).

The product of its digits is 33177600, while the sum is 63.

The spelling of 12838825116549 in words is "twelve trillion, eight hundred thirty-eight billion, eight hundred twenty-five million, one hundred sixteen thousand, five hundred forty-nine".