12507013218 has 32 divisors (see below), whose sum is σ = 28854641664. Its totient is φ = 3540034512.

The previous prime is 12507013199. The next prime is 12507013231. The reversal of 12507013218 is 81231070521.

12507013218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1387030 + ... + 1396017.

It is an arithmetic number, because the mean of its divisors is an integer number (901707552).

Almost surely, 2^12507013218 is an apocalyptic number.

12507013218 is an abundant number, since it is smaller than the sum of its proper divisors (16347628446).

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

12507013218 is a wasteful number, since it uses less digits than its factorization.

12507013218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2783166.

The product of its (nonzero) digits is 3360, while the sum is 30.

Adding to 12507013218 its reverse (81231070521), we get a palindrome (93738083739).

The spelling of 12507013218 in words is "twelve billion, five hundred seven million, thirteen thousand, two hundred eighteen".