3605856636 has 48 divisors (see below), whose sum is σ = 8984586240. Its totient is φ = 1123066560.

The previous prime is 3605856629. The next prime is 3605856649. The reversal of 3605856636 is 6366585063.

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 15 ways as a sum of consecutive naturals, for example, 156336 + ... + 177911.

It is an arithmetic number, because the mean of its divisors is an integer number (187178880).

Almost surely, 2^3605856636 is an apocalyptic number.

It is an amenable number.

3605856636 is an abundant number, since it is smaller than the sum of its proper divisors (5378729604).

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

3605856636 is a wasteful number, since it uses less digits than its factorization.

3605856636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334314 (or 334312 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 48.

The square root of 3605856636 is about 60048.7854664855. The cubic root of 3605856636 is about 1533.4495247595.

The spelling of 3605856636 in words is "three billion, six hundred five million, eight hundred fifty-six thousand, six hundred thirty-six".