12517107237 has 12 divisors (see below), whose sum is σ = 18085188940. Its totient is φ = 8342466048.

The previous prime is 12517107217. The next prime is 12517107269. The reversal of 12517107237 is 73270171521.

It is a happy number.

12517107237 is a `hidden beast` number, since 1 + 2 + 517 + 107 + 2 + 37 = 666.

12517107237 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8293927041 + 4223180196 = 91071^2 + 64986^2 .

It is not a de Polignac number, because 12517107237 - 2¹² = 12517103141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12517107217) 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, 154108 + ... + 220869.

Almost surely, 2^12517107237 is an apocalyptic number.

It is an amenable number.

12517107237 is a deficient number, since it is larger than the sum of its proper divisors (5568081703).

12517107237 is a wasteful number, since it uses less digits than its factorization.

12517107237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378692 (or 378689 counting only the distinct ones).

The product of its (nonzero) digits is 20580, while the sum is 36.

Adding to 12517107237 its reverse (73270171521), we get a palindrome (85787278758).

The spelling of 12517107237 in words is "twelve billion, five hundred seventeen million, one hundred seven thousand, two hundred thirty-seven".