268661842276 has 9 divisors (see below), whose sum is σ = 470160038131. Its totient is φ = 134330402812.

The previous prime is 268661842247. The next prime is 268661842283. The reversal of 268661842276 is 672248166862.

The square root of 268661842276 is 518326.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 268661842276.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 907071 + ... + 1166233.

Almost surely, 2^268661842276 is an apocalyptic number.

268661842276 is the 518326-th square number.

It is an amenable number.

268661842276 is a deficient number, since it is larger than the sum of its proper divisors (201498195855).

268661842276 is an frugal number, since it uses more digits than its factorization.

268661842276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518330 (or 259165 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 58.

The spelling of 268661842276 in words is "two hundred sixty-eight billion, six hundred sixty-one million, eight hundred forty-two thousand, two hundred seventy-six".