3639727896 has 128 divisors (see below), whose sum is σ = 10584000000. Its totient is φ = 1021612032.

The previous prime is 3639727873. The next prime is 3639727901. The reversal of 3639727896 is 6987279363.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 2427355 + ... + 2428853.

It is an arithmetic number, because the mean of its divisors is an integer number (82687500).

Almost surely, 2^3639727896 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 3639727896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5292000000).

3639727896 is an abundant number, since it is smaller than the sum of its proper divisors (6944272104).

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

3639727896 is a wasteful number, since it uses less digits than its factorization.

3639727896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1761 (or 1757 counting only the distinct ones).

The product of its digits is 20575296, while the sum is 60.

The square root of 3639727896 is about 60330.1574339070. The cubic root of 3639727896 is about 1538.2360046001.

The spelling of 3639727896 in words is "three billion, six hundred thirty-nine million, seven hundred twenty-seven thousand, eight hundred ninety-six".