12968575218 has 24 divisors (see below), whose sum is σ = 28110038268. Its totient is φ = 4321095552.

The previous prime is 12968575211. The next prime is 12968575223. The reversal of 12968575218 is 81257586921.

12968575218 is a `hidden beast` number, since 1 + 2 + 9 + 68 + 57 + 521 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12954309489 + 14265729 = 113817^2 + 3777^2 .

It is not an unprimeable number, because it can be changed into a prime (12968575211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101155 + ... + 190182.

Almost surely, 2^12968575218 is an apocalyptic number.

12968575218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12968575218 is an abundant number, since it is smaller than the sum of its proper divisors (15141463050).

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

12968575218 is a wasteful number, since it uses less digits than its factorization.

12968575218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293818 (or 293815 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 54.

The spelling of 12968575218 in words is "twelve billion, nine hundred sixty-eight million, five hundred seventy-five thousand, two hundred eighteen".