12287553528 has 32 divisors (see below), whose sum is σ = 30722889600. Its totient is φ = 4095317088.

The previous prime is 12287553503. The next prime is 12287553529. The reversal of 12287553528 is 82535578221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12287553529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183175 + ... + 241097.

It is an arithmetic number, because the mean of its divisors is an integer number (960090300).

Almost surely, 2^12287553528 is an apocalyptic number.

It is an amenable number.

12287553528 is an abundant number, since it is smaller than the sum of its proper divisors (18435336072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12287553528 is a wasteful number, since it uses less digits than its factorization.

12287553528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66771 (or 66767 counting only the distinct ones).

The product of its digits is 1344000, while the sum is 48.

The spelling of 12287553528 in words is "twelve billion, two hundred eighty-seven million, five hundred fifty-three thousand, five hundred twenty-eight".