12579449124 has 96 divisors (see below), whose sum is σ = 32891798016. Its totient is φ = 3709601280.

The previous prime is 12579449123. The next prime is 12579449213. The reversal of 12579449124 is 42194497521.

12579449124 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12579449123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 725484 + ... + 742620.

It is an arithmetic number, because the mean of its divisors is an integer number (342622896).

Almost surely, 2^12579449124 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 12579449124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16445899008).

12579449124 is an abundant number, since it is smaller than the sum of its proper divisors (20312348892).

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

12579449124 is a wasteful number, since it uses less digits than its factorization.

12579449124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17305 (or 17303 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

The spelling of 12579449124 in words is "twelve billion, five hundred seventy-nine million, four hundred forty-nine thousand, one hundred twenty-four".