2065072009 has 48 divisors (see below), whose sum is σ = 2863935360. Its totient is φ = 1444884480.

The previous prime is 2065072001. The next prime is 2065072021. The reversal of 2065072009 is 9002705602.

It is not a de Polignac number, because 2065072009 - 2³ = 2065072001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2065072001) 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 47 ways as a sum of consecutive naturals, for example, 479337 + ... + 483625.

It is an arithmetic number, because the mean of its divisors is an integer number (59665320).

Almost surely, 2^2065072009 is an apocalyptic number.

It is an amenable number.

2065072009 is a deficient number, since it is larger than the sum of its proper divisors (798863351).

2065072009 is a wasteful number, since it uses less digits than its factorization.

2065072009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4370 (or 4357 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 2065072009 is about 45443.0633760533. The cubic root of 2065072009 is about 1273.4397439389.

The spelling of 2065072009 in words is "two billion, sixty-five million, seventy-two thousand, nine".