12544561730764 has 12 divisors (see below), whose sum is σ = 25089123461584. Its totient is φ = 5376240741744.

The previous prime is 12544561730761. The next prime is 12544561730801. The reversal of 12544561730764 is 46703716544521.

12544561730764 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (12544561730761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224010030879 + ... + 224010030934.

Almost surely, 2^{12544561730764} is an apocalyptic number.

12544561730764 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12544561730764 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12544561730764 is a wasteful number, since it uses less digits than its factorization.

12544561730764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448020061824 (or 448020061822 counting only the distinct ones).

The product of its (nonzero) digits is 16934400, while the sum is 55.

The spelling of 12544561730764 in words is "twelve trillion, five hundred forty-four billion, five hundred sixty-one million, seven hundred thirty thousand, seven hundred sixty-four".