2009831659 has 12 divisors (see below), whose sum is σ = 2210245072. Its totient is φ = 1826217360.

The previous prime is 2009831657. The next prime is 2009831741. The reversal of 2009831659 is 9561389002.

It is a happy number.

It is not a de Polignac number, because 2009831659 - 2¹ = 2009831657 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2009831651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 437794 + ... + 442360.

Almost surely, 2^2009831659 is an apocalyptic number.

2009831659 is a deficient number, since it is larger than the sum of its proper divisors (200413413).

2009831659 is a wasteful number, since it uses less digits than its factorization.

2009831659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8226 (or 8215 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 2009831659 is about 44831.1460817142. The cubic root of 2009831659 is about 1261.9821951840.

The spelling of 2009831659 in words is "two billion, nine million, eight hundred thirty-one thousand, six hundred fifty-nine".