12617425312 has 24 divisors (see below), whose sum is σ = 24867353700. Its totient is φ = 6301906944.

The previous prime is 12617425297. The next prime is 12617425367. The reversal of 12617425312 is 21352471621.

It can be written as a sum of positive squares in 2 ways, for example, as 10460380176 + 2157045136 = 102276^2 + 46444^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182487 + ... + 241942.

Almost surely, 2^12617425312 is an apocalyptic number.

It is an amenable number.

12617425312 is a deficient number, since it is larger than the sum of its proper divisors (12249928388).

12617425312 is an equidigital number, since it uses as much as digits as its factorization.

12617425312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425368 (or 425360 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

Adding to 12617425312 its reverse (21352471621), we get a palindrome (33969896933).

The spelling of 12617425312 in words is "twelve billion, six hundred seventeen million, four hundred twenty-five thousand, three hundred twelve".