3681879608 has 64 divisors (see below), whose sum is σ = 7762867200. Its totient is φ = 1622747520.

The previous prime is 3681879599. The next prime is 3681879613. The reversal of 3681879608 is 8069781863.

It is a happy number.

3681879608 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 446741 + ... + 454907.

It is an arithmetic number, because the mean of its divisors is an integer number (121294800).

Almost surely, 2^3681879608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3681879608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3881433600).

3681879608 is an abundant number, since it is smaller than the sum of its proper divisors (4080987592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3681879608 is a wasteful number, since it uses less digits than its factorization.

3681879608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8340 (or 8336 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 56.

The square root of 3681879608 is about 60678.4937848658. The cubic root of 3681879608 is about 1544.1513348671.

The spelling of 3681879608 in words is "three billion, six hundred eighty-one million, eight hundred seventy-nine thousand, six hundred eight".