811680268 has 24 divisors (see below), whose sum is σ = 1630524672. Its totient is φ = 346327824.

The previous prime is 811680257. The next prime is 811680293. The reversal of 811680268 is 862086118.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 811680268.

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, 57496 + ... + 70207.

It is an arithmetic number, because the mean of its divisors is an integer number (67938528).

Almost surely, 2^811680268 is an apocalyptic number.

It is an amenable number.

811680268 is an abundant number, since it is smaller than the sum of its proper divisors (818844404).

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

811680268 is a wasteful number, since it uses less digits than its factorization.

811680268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127941 (or 127939 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 40.

The square root of 811680268 is about 28490.0029484028. The cubic root of 811680268 is about 932.8138724477.

The spelling of 811680268 in words is "eight hundred eleven million, six hundred eighty thousand, two hundred sixty-eight".