268785639312 has 40 divisors (see below), whose sum is σ = 724552595904. Its totient is φ = 85699768704.

The previous prime is 268785639299. The next prime is 268785639313. The reversal of 268785639312 is 213936587862.

It is not an unprimeable number, because it can be changed into a prime (268785639313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121731523 + ... + 121733730.

Almost surely, 2^268785639312 is an apocalyptic number.

It is an amenable number.

268785639312 is an abundant number, since it is smaller than the sum of its proper divisors (455766956592).

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

268785639312 is a wasteful number, since it uses less digits than its factorization.

268785639312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243465287 (or 243465281 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 60.

The spelling of 268785639312 in words is "two hundred sixty-eight billion, seven hundred eighty-five million, six hundred thirty-nine thousand, three hundred twelve".