805822727811 has 8 divisors (see below), whose sum is σ = 1078888521744. Its totient is φ = 534986042880.

The previous prime is 805822727807. The next prime is 805822727837. The reversal of 805822727811 is 118727228508.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 805822727811 - 2² = 805822727807 is a prime.

It is not an unprimeable number, because it can be changed into a prime (805822727111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 557276406 + ... + 557277851.

It is an arithmetic number, because the mean of its divisors is an integer number (134861065218).

Almost surely, 2^805822727811 is an apocalyptic number.

805822727811 is a deficient number, since it is larger than the sum of its proper divisors (273065793933).

805822727811 is a wasteful number, since it uses less digits than its factorization.

805822727811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114554501.

The product of its (nonzero) digits is 1003520, while the sum is 51.

The spelling of 805822727811 in words is "eight hundred five billion, eight hundred twenty-two million, seven hundred twenty-seven thousand, eight hundred eleven".