12486575728 has 60 divisors (see below), whose sum is σ = 26966401272. Its totient is φ = 5554783360.

The previous prime is 12486575719. The next prime is 12486575729. The reversal of 12486575728 is 82757568421.

It is a super-2 number, since 2×12486575728² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12486575729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 372726 + ... + 404842.

Almost surely, 2^12486575728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12486575728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13483200636).

12486575728 is an abundant number, since it is smaller than the sum of its proper divisors (14479825544).

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

12486575728 is a wasteful number, since it uses less digits than its factorization.

12486575728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32230 (or 32177 counting only the distinct ones).

The product of its digits is 7526400, while the sum is 55.

The spelling of 12486575728 in words is "twelve billion, four hundred eighty-six million, five hundred seventy-five thousand, seven hundred twenty-eight".