268648365970 has 16 divisors (see below), whose sum is σ = 495361378008. Its totient is φ = 104838386560.

The previous prime is 268648365961. The next prime is 268648365991. The reversal of 268648365970 is 79563846862.

It is a Cunningham number, because it is equal to 518313²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 96712914169 + 171935451801 = 310987^2 + 414651^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327619549 + ... + 327620368.

Almost surely, 2^268648365970 is an apocalyptic number.

268648365970 is a deficient number, since it is larger than the sum of its proper divisors (226713012038).

268648365970 is a wasteful number, since it uses less digits than its factorization.

268648365970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655239965.

The product of its (nonzero) digits is 104509440, while the sum is 64.

The spelling of 268648365970 in words is "two hundred sixty-eight billion, six hundred forty-eight million, three hundred sixty-five thousand, nine hundred seventy".