12585501280 has 48 divisors (see below), whose sum is σ = 32436273744. Its totient is φ = 4576545280.

The previous prime is 12585501157. The next prime is 12585501289. The reversal of 12585501280 is 8210558521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12585501289) 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, 3573667 + ... + 3577186.

It is an arithmetic number, because the mean of its divisors is an integer number (675755703).

Almost surely, 2^12585501280 is an apocalyptic number.

12585501280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12585501280 is an abundant number, since it is smaller than the sum of its proper divisors (19850772464).

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

12585501280 is a wasteful number, since it uses less digits than its factorization.

12585501280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7150879 (or 7150871 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 37.

The spelling of 12585501280 in words is "twelve billion, five hundred eighty-five million, five hundred one thousand, two hundred eighty".