268964640763568 has 10 divisors (see below), whose sum is σ = 521118991479444. Its totient is φ = 134482320381776.

The previous prime is 268964640763541. The next prime is 268964640763571. The reversal of 268964640763568 is 865367046469862.

It is a junction number, because it is equal to n+sod(n) for n = 268964640763492 and 268964640763501.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8405145023846 + ... + 8405145023877.

Almost surely, 2^{268964640763568} is an apocalyptic number.

It is an amenable number.

268964640763568 is a deficient number, since it is larger than the sum of its proper divisors (252154350715876).

268964640763568 is a wasteful number, since it uses less digits than its factorization.

268964640763568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16810290047731 (or 16810290047725 counting only the distinct ones).

The product of its (nonzero) digits is 15049359360, while the sum is 80.

The spelling of 268964640763568 in words is "two hundred sixty-eight trillion, nine hundred sixty-four billion, six hundred forty million, seven hundred sixty-three thousand, five hundred sixty-eight".