3681879609 has 16 divisors (see below), whose sum is σ = 5045534720. Its totient is φ = 2387333520.

The previous prime is 3681879599. The next prime is 3681879613. The reversal of 3681879609 is 9069781863.

It is not a de Polignac number, because 3681879609 - 2⁵ = 3681879577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3681879209) 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 15 ways as a sum of consecutive naturals, for example, 100057 + ... + 131814.

It is an arithmetic number, because the mean of its divisors is an integer number (315345920).

Almost surely, 2^3681879609 is an apocalyptic number.

It is an amenable number.

3681879609 is a deficient number, since it is larger than the sum of its proper divisors (1363655111).

3681879609 is a wasteful number, since it uses less digits than its factorization.

3681879609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232020.

The product of its (nonzero) digits is 3919104, while the sum is 57.

The square root of 3681879609 is about 60678.4937931060. The cubic root of 3681879609 is about 1544.1513350069.

The spelling of 3681879609 in words is "three billion, six hundred eighty-one million, eight hundred seventy-nine thousand, six hundred nine".