12545242752 has 256 divisors, whose sum is σ = 40508916480. Its totient is φ = 3358064640.

The previous prime is 12545242741. The next prime is 12545242757. The reversal of 12545242752 is 25724254521.

It is a self number, because there is not a number n which added to its sum of digits gives 12545242752.

It is not an unprimeable number, because it can be changed into a prime (12545242757) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12840088 + ... + 12841064.

It is an arithmetic number, because the mean of its divisors is an integer number (158237955).

Almost surely, 2^12545242752 is an apocalyptic number.

12545242752 is a gapful number since it is divisible by the number (12) 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 12545242752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20254458240).

12545242752 is an abundant number, since it is smaller than the sum of its proper divisors (27963673728).

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

12545242752 is a wasteful number, since it uses less digits than its factorization.

12545242752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299 (or 1287 counting only the distinct ones).

The product of its digits is 224000, while the sum is 39.

The spelling of 12545242752 in words is "twelve billion, five hundred forty-five million, two hundred forty-two thousand, seven hundred fifty-two".