806530772605 has 16 divisors (see below), whose sum is σ = 991754280000. Its totient is φ = 629446679680.

The previous prime is 806530772581. The next prime is 806530772609. The reversal of 806530772605 is 506277035608.

It is not a de Polignac number, because 806530772605 - 2⁵ = 806530772573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806530772609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10396480 + ... + 10473769.

It is an arithmetic number, because the mean of its divisors is an integer number (61984642500).

Almost surely, 2^806530772605 is an apocalyptic number.

It is an amenable number.

806530772605 is a deficient number, since it is larger than the sum of its proper divisors (185223507395).

806530772605 is a wasteful number, since it uses less digits than its factorization.

806530772605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20870444.

The product of its (nonzero) digits is 2116800, while the sum is 49.

The spelling of 806530772605 in words is "eight hundred six billion, five hundred thirty million, seven hundred seventy-two thousand, six hundred five".