12541517899712 has 56 divisors (see below), whose sum is σ = 26134530200736. Its totient is φ = 5959912578048.

The previous prime is 12541517899711. The next prime is 12541517899723. The reversal of 12541517899712 is 21799871514521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12541517899711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26902823 + ... + 27365030.

Almost surely, 2^{12541517899712} is an apocalyptic number.

It is an amenable number.

12541517899712 is an abundant number, since it is smaller than the sum of its proper divisors (13593012301024).

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

12541517899712 is a wasteful number, since it uses less digits than its factorization.

12541517899712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54268045 (or 54268035 counting only the distinct ones).

The product of its digits is 12700800, while the sum is 62.

The spelling of 12541517899712 in words is "twelve trillion, five hundred forty-one billion, five hundred seventeen million, eight hundred ninety-nine thousand, seven hundred twelve".