2006809005 has 32 divisors (see below), whose sum is σ = 3234591360. Its totient is φ = 1062432000.

The previous prime is 2006808971. The next prime is 2006809009. The reversal of 2006809005 is 5009086002.

It is not a de Polignac number, because 2006809005 - 2⁶ = 2006808941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2006809009) 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, 1403631 + ... + 1405059.

It is an arithmetic number, because the mean of its divisors is an integer number (101080980).

Almost surely, 2^2006809005 is an apocalyptic number.

It is an amenable number.

2006809005 is a deficient number, since it is larger than the sum of its proper divisors (1227782355).

2006809005 is a wasteful number, since it uses less digits than its factorization.

2006809005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2061.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 2006809005 is about 44797.4218566203. The cubic root of 2006809005 is about 1261.3492318241.

The spelling of 2006809005 in words is "two billion, six million, eight hundred nine thousand, five".