3643121360 has 20 divisors (see below), whose sum is σ = 8470257348. Its totient is φ = 1457248512.

The previous prime is 3643121359. The next prime is 3643121459. The reversal of 3643121360 is 631213463.

3643121360 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1854508096 + 1788613264 = 43064^2 + 42292^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22769429 + ... + 22769588.

Almost surely, 2^3643121360 is an apocalyptic number.

It is an amenable number.

3643121360 is an abundant number, since it is smaller than the sum of its proper divisors (4827135988).

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

3643121360 is a wasteful number, since it uses less digits than its factorization.

3643121360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45539030 (or 45539024 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 3643121360 is about 60358.2749919181. The cubic root of 3643121360 is about 1538.7139091063.

The spelling of 3643121360 in words is "three billion, six hundred forty-three million, one hundred twenty-one thousand, three hundred sixty".