806575077739 has 32 divisors (see below), whose sum is σ = 867382790400. Its totient is φ = 747823104000.

The previous prime is 806575077733. The next prime is 806575077751. The reversal of 806575077739 is 937770575608.

It is a cyclic number.

It is not a de Polignac number, because 806575077739 - 2³ = 806575077731 is a prime.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (806575077731) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65831364 + ... + 65843614.

It is an arithmetic number, because the mean of its divisors is an integer number (27105712200).

Almost surely, 2^806575077739 is an apocalyptic number.

806575077739 is a deficient number, since it is larger than the sum of its proper divisors (60807712661).

806575077739 is a wasteful number, since it uses less digits than its factorization.

806575077739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12763.

The product of its (nonzero) digits is 77792400, while the sum is 64.

The spelling of 806575077739 in words is "eight hundred six billion, five hundred seventy-five million, seventy-seven thousand, seven hundred thirty-nine".