2009639633 has 4 divisors (see below), whose sum is σ = 2115410160. Its totient is φ = 1903869108.

The previous prime is 2009639627. The next prime is 2009639657. The reversal of 2009639633 is 3369369002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2009639633 - 2⁴ = 2009639617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2009639603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52885235 + ... + 52885272.

It is an arithmetic number, because the mean of its divisors is an integer number (528852540).

Almost surely, 2^2009639633 is an apocalyptic number.

It is an amenable number.

2009639633 is a deficient number, since it is larger than the sum of its proper divisors (105770527).

2009639633 is a wasteful number, since it uses less digits than its factorization.

2009639633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105770526.

The product of its (nonzero) digits is 157464, while the sum is 41.

The square root of 2009639633 is about 44829.0043721696. The cubic root of 2009639633 is about 1261.9420025788.

The spelling of 2009639633 in words is "two billion, nine million, six hundred thirty-nine thousand, six hundred thirty-three".