843849849249 has 48 divisors (see below), whose sum is σ = 1385923129344. Its totient is φ = 490121301600.

The previous prime is 843849849239. The next prime is 843849849251. The reversal of 843849849249 is 942948948348.

843849849249 is a `hidden beast` number, since 8 + 4 + 3 + 8 + 4 + 98 + 492 + 49 = 666.

It is not a de Polignac number, because 843849849249 - 2¹⁷ = 843849718177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (843849849209) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1018647 + ... + 1650860.

It is an arithmetic number, because the mean of its divisors is an integer number (28873398528).

Almost surely, 2^843849849249 is an apocalyptic number.

It is an amenable number.

843849849249 is a deficient number, since it is larger than the sum of its proper divisors (542073280095).

843849849249 is a wasteful number, since it uses less digits than its factorization.

843849849249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2669658 (or 2669655 counting only the distinct ones).

The product of its digits is 573308928, while the sum is 72.

Subtracting 843849849249 from its reverse (942948948348), we obtain a palindrome (99099099099).

The spelling of 843849849249 in words is "eight hundred forty-three billion, eight hundred forty-nine million, eight hundred forty-nine thousand, two hundred forty-nine".