811068140 has 12 divisors (see below), whose sum is σ = 1703243136. Its totient is φ = 324427248.

The previous prime is 811068127. The next prime is 811068173. The reversal of 811068140 is 41860118.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20276684 + ... + 20276723.

It is an arithmetic number, because the mean of its divisors is an integer number (141936928).

Almost surely, 2^811068140 is an apocalyptic number.

It is an amenable number.

811068140 is an abundant number, since it is smaller than the sum of its proper divisors (892174996).

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

811068140 is a wasteful number, since it uses less digits than its factorization.

811068140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40553416 (or 40553414 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 29.

The square root of 811068140 is about 28479.2580661786. The cubic root of 811068140 is about 932.5793198729.

The spelling of 811068140 in words is "eight hundred eleven million, sixty-eight thousand, one hundred forty".