12425236218 has 40 divisors (see below), whose sum is σ = 27925967520. Its totient is φ = 4129214760.

The previous prime is 12425236163. The next prime is 12425236223. The reversal of 12425236218 is 81263252421.

12425236218 is a `hidden beast` number, since 1 + 2 + 4 + 2 + 5 + 23 + 621 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 62238 + ... + 169481.

It is an arithmetic number, because the mean of its divisors is an integer number (698149188).

Almost surely, 2^12425236218 is an apocalyptic number.

12425236218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12425236218 is an abundant number, since it is smaller than the sum of its proper divisors (15500731302).

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

12425236218 is a wasteful number, since it uses less digits than its factorization.

12425236218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232064 (or 232055 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

Adding to 12425236218 its reverse (81263252421), we get a palindrome (93688488639).

The spelling of 12425236218 in words is "twelve billion, four hundred twenty-five million, two hundred thirty-six thousand, two hundred eighteen".