3621685120 has 128 divisors (see below), whose sum is σ = 8820070560. Its totient is φ = 1421869056.

The previous prime is 3621685051. The next prime is 3621685141. The reversal of 3621685120 is 215861263.

It is a tau number, because it is divible by the number of its divisors (128).

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, 14092032 + ... + 14092288.

Almost surely, 2^3621685120 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 3621685120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4410035280).

3621685120 is an abundant number, since it is smaller than the sum of its proper divisors (5198385440).

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

3621685120 is a wasteful number, since it uses less digits than its factorization.

3621685120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600 (or 588 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 3621685120 is about 60180.4380176815. The cubic root of 3621685120 is about 1535.6900235308.

The spelling of 3621685120 in words is "three billion, six hundred twenty-one million, six hundred eighty-five thousand, one hundred twenty".