12534563312445 has 16 divisors (see below), whose sum is σ = 20482009839360. Its totient is φ = 6542864253504.

The previous prime is 12534563312417. The next prime is 12534563312449. The reversal of 12534563312445 is 54421336543521.

It is not a de Polignac number, because 12534563312445 - 2⁸ = 12534563312189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12534563312394 and 12534563312403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12534563312449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8889760510 + ... + 8889761919.

It is an arithmetic number, because the mean of its divisors is an integer number (1280125614960).

Almost surely, 2^{12534563312445} is an apocalyptic number.

12534563312445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12534563312445 is a deficient number, since it is larger than the sum of its proper divisors (7947446526915).

12534563312445 is a wasteful number, since it uses less digits than its factorization.

12534563312445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17779522484.

The product of its digits is 5184000, while the sum is 48.

Adding to 12534563312445 its reverse (54421336543521), we get a palindrome (66955899855966).

The spelling of 12534563312445 in words is "twelve trillion, five hundred thirty-four billion, five hundred sixty-three million, three hundred twelve thousand, four hundred forty-five".