12544321736052 has 72 divisors (see below), whose sum is σ = 32571082272456. Its totient is φ = 4067826822144.

The previous prime is 12544321735879. The next prime is 12544321736057. The reversal of 12544321736052 is 25063712344521.

12544321736052 is a `hidden beast` number, since 1 + 2 + 5 + 4 + 4 + 32 + 1 + 7 + 3 + 605 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1929493476 + 12542392242576 = 43926^2 + 3541524^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12544321735989 and 12544321736007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12544321736057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8355088 + ... + 9741464.

It is an arithmetic number, because the mean of its divisors is an integer number (452376142673).

Almost surely, 2^{12544321736052} is an apocalyptic number.

12544321736052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12544321736052 is an abundant number, since it is smaller than the sum of its proper divisors (20026760536404).

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

12544321736052 is a wasteful number, since it uses less digits than its factorization.

12544321736052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393217 (or 1393212 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The spelling of 12544321736052 in words is "twelve trillion, five hundred forty-four billion, three hundred twenty-one million, seven hundred thirty-six thousand, fifty-two".