12448585520 has 80 divisors (see below), whose sum is σ = 33191000640. Its totient is φ = 4253463552.

The previous prime is 12448585507. The next prime is 12448585549. The reversal of 12448585520 is 2558584421.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126146 + ... + 202014.

It is an arithmetic number, because the mean of its divisors is an integer number (414887508).

Almost surely, 2^12448585520 is an apocalyptic number.

12448585520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12448585520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16595500320).

12448585520 is an abundant number, since it is smaller than the sum of its proper divisors (20742415120).

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

12448585520 is a wasteful number, since it uses less digits than its factorization.

12448585520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76182 (or 76176 counting only the distinct ones).

The product of its (nonzero) digits is 512000, while the sum is 44.

The spelling of 12448585520 in words is "twelve billion, four hundred forty-eight million, five hundred eighty-five thousand, five hundred twenty".