805761668 has 12 divisors (see below), whose sum is σ = 1471391040. Its totient is φ = 385364232.

The previous prime is 805761629. The next prime is 805761679. The reversal of 805761668 is 866167508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4379048 + ... + 4379231.

It is an arithmetic number, because the mean of its divisors is an integer number (122615920).

Almost surely, 2^805761668 is an apocalyptic number.

It is an amenable number.

805761668 is a deficient number, since it is larger than the sum of its proper divisors (665629372).

805761668 is a wasteful number, since it uses less digits than its factorization.

805761668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8758306 (or 8758304 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 805761668 is about 28385.9413794928. The cubic root of 805761668 is about 930.5410456407.

The spelling of 805761668 in words is "eight hundred five million, seven hundred sixty-one thousand, six hundred sixty-eight".