12543503475740 has 96 divisors (see below), whose sum is σ = 27763918560000. Its totient is φ = 4747130841600.

The previous prime is 12543503475709. The next prime is 12543503475743. The reversal of 12543503475740 is 4757430534521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12543503475743) 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, 1025879507 + ... + 1025891733.

It is an arithmetic number, because the mean of its divisors is an integer number (289207485000).

Almost surely, 2^{12543503475740} is an apocalyptic number.

12543503475740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12543503475740 is an abundant number, since it is smaller than the sum of its proper divisors (15220415084260).

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

12543503475740 is a wasteful number, since it uses less digits than its factorization.

12543503475740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15555 (or 15553 counting only the distinct ones).

The product of its (nonzero) digits is 7056000, while the sum is 50.

The spelling of 12543503475740 in words is "twelve trillion, five hundred forty-three billion, five hundred three million, four hundred seventy-five thousand, seven hundred forty".