549249243249 has 16 divisors (see below), whose sum is σ = 836961582080. Its totient is φ = 313852827600.

The previous prime is 549249243203. The next prime is 549249243259. The reversal of 549249243249 is 942342942945.

It is not a de Polignac number, because 549249243249 - 2¹¹ = 549249241201 is a prime.

It is a Smith number, since the sum of its digits (57) 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 not an unprimeable number, because it can be changed into a prime (549249243259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3221262 + ... + 3387480.

It is an arithmetic number, because the mean of its divisors is an integer number (52310098880).

Almost surely, 2^549249243249 is an apocalyptic number.

It is an amenable number.

549249243249 is a deficient number, since it is larger than the sum of its proper divisors (287712338831).

549249243249 is a wasteful number, since it uses less digits than its factorization.

549249243249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323580.

The product of its digits is 22394880, while the sum is 57.

The spelling of 549249243249 in words is "five hundred forty-nine billion, two hundred forty-nine million, two hundred forty-three thousand, two hundred forty-nine".