2071807309 has 16 divisors (see below), whose sum is σ = 2440851840. Its totient is φ = 1733693760.

The previous prime is 2071807307. The next prime is 2071807327. The reversal of 2071807309 is 9037081702.

It is a cyclic number.

It is not a de Polignac number, because 2071807309 - 2¹ = 2071807307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2071807301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31159 + ... + 71515.

It is an arithmetic number, because the mean of its divisors is an integer number (152553240).

Almost surely, 2^2071807309 is an apocalyptic number.

It is an amenable number.

2071807309 is a deficient number, since it is larger than the sum of its proper divisors (369044531).

2071807309 is a wasteful number, since it uses less digits than its factorization.

2071807309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40740.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 2071807309 is about 45517.1100686324. The cubic root of 2071807309 is about 1274.8226966574.

The spelling of 2071807309 in words is "two billion, seventy-one million, eight hundred seven thousand, three hundred nine".