12728363637582 has 48 divisors (see below), whose sum is σ = 28961552605440. Its totient is φ = 4189081690872.

The previous prime is 12728363637569. The next prime is 12728363637589. The reversal of 12728363637582 is 28573636382721.

12728363637582 is a `hidden beast` number, since 1 + 2 + 72 + 8 + 363 + 63 + 75 + 82 = 666.

It is a super-2 number, since 2×12728363637582² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12728363637589) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 165721408 + ... + 165798195.

It is an arithmetic number, because the mean of its divisors is an integer number (603365679280).

Almost surely, 2^{12728363637582} is an apocalyptic number.

12728363637582 is an abundant number, since it is smaller than the sum of its proper divisors (16233188967858).

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

12728363637582 is an equidigital number, since it uses as much as digits as its factorization.

12728363637582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331519699 (or 331519687 counting only the distinct ones).

The product of its digits is 121927680, while the sum is 63.

The spelling of 12728363637582 in words is "twelve trillion, seven hundred twenty-eight billion, three hundred sixty-three million, six hundred thirty-seven thousand, five hundred eighty-two".