12537246281 has 12 divisors (see below), whose sum is σ = 14923312272. Its totient is φ = 10496297448.

The previous prime is 12537246259. The next prime is 12537246283. The reversal of 12537246281 is 18264273521.

12537246281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12537246281 - 2¹⁰ = 12537245257 is a prime.

It is a super-2 number, since 2×12537246281² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12537246283) 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 11 ways as a sum of consecutive naturals, for example, 2973035 + ... + 2977248.

It is an arithmetic number, because the mean of its divisors is an integer number (1243609356).

Almost surely, 2^12537246281 is an apocalyptic number.

It is an amenable number.

12537246281 is a deficient number, since it is larger than the sum of its proper divisors (2386065991).

12537246281 is an equidigital number, since it uses as much as digits as its factorization.

12537246281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5950340 (or 5950333 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The spelling of 12537246281 in words is "twelve billion, five hundred thirty-seven million, two hundred forty-six thousand, two hundred eighty-one".