12663527228 has 24 divisors (see below), whose sum is σ = 24631976880. Its totient is φ = 5647541120.

The previous prime is 12663527221. The next prime is 12663527291. The reversal of 12663527228 is 82272536621.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12663527221) 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 7 ways as a sum of consecutive naturals, for example, 2712833 + ... + 2717496.

It is an arithmetic number, because the mean of its divisors is an integer number (1026332370).

Almost surely, 2^12663527228 is an apocalyptic number.

It is an amenable number.

12663527228 is a deficient number, since it is larger than the sum of its proper divisors (11968449652).

12663527228 is a wasteful number, since it uses less digits than its factorization.

12663527228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5430397 (or 5430395 counting only the distinct ones).

The product of its digits is 483840, while the sum is 44.

The spelling of 12663527228 in words is "twelve billion, six hundred sixty-three million, five hundred twenty-seven thousand, two hundred twenty-eight".