12849252047 has 4 divisors (see below), whose sum is σ = 13067036040. Its totient is φ = 12631468056.

The previous prime is 12849252011. The next prime is 12849252089. The reversal of 12849252047 is 74025294821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74025294821 = 227537 ⋅325333.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12849252047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12849251989 and 12849252007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12849252547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108891908 + ... + 108892025.

It is an arithmetic number, because the mean of its divisors is an integer number (3266759010).

Almost surely, 2^12849252047 is an apocalyptic number.

12849252047 is a deficient number, since it is larger than the sum of its proper divisors (217783993).

12849252047 is an equidigital number, since it uses as much as digits as its factorization.

12849252047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217783992.

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 12849252047 in words is "twelve billion, eight hundred forty-nine million, two hundred fifty-two thousand, forty-seven".