12549044227 has 16 divisors (see below), whose sum is σ = 13294632960. Its totient is φ = 11825741088.

The previous prime is 12549044201. The next prime is 12549044239. The reversal of 12549044227 is 72244094521.

It is a cyclic number.

It is not a de Polignac number, because 12549044227 - 2¹⁵ = 12549011459 is a prime.

It is a super-2 number, since 2×12549044227² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12549044227.

It is not an unprimeable number, because it can be changed into a prime (12549054227) 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 15 ways as a sum of consecutive naturals, for example, 487678 + ... + 512764.

It is an arithmetic number, because the mean of its divisors is an integer number (830914560).

Almost surely, 2^12549044227 is an apocalyptic number.

12549044227 is a deficient number, since it is larger than the sum of its proper divisors (745588733).

12549044227 is a wasteful number, since it uses less digits than its factorization.

12549044227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25530.

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 12549044227 in words is "twelve billion, five hundred forty-nine million, forty-four thousand, two hundred twenty-seven".