3648360645 has 12 divisors (see below), whose sum is σ = 6323825196. Its totient is φ = 1945792320.

The previous prime is 3648360641. The next prime is 3648360647. The reversal of 3648360645 is 5460638463.

3648360645 is a `hidden beast` number, since 36 + 4 + 8 + 3 + 606 + 4 + 5 = 666.

3648360645 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 2693921409 + 954439236 = 51903^2 + 30894^2 .

It is not a de Polignac number, because 3648360645 - 2² = 3648360641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 81074681 = 3648360645 / (3 + 6 + 4 + 8 + 3 + 6 + 0 + 6 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 3648360645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3648360641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40537296 + ... + 40537385.

It is an arithmetic number, because the mean of its divisors is an integer number (526985433).

Almost surely, 2^3648360645 is an apocalyptic number.

It is an amenable number.

3648360645 is a deficient number, since it is larger than the sum of its proper divisors (2675464551).

3648360645 is a wasteful number, since it uses less digits than its factorization.

3648360645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81074692 (or 81074689 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The square root of 3648360645 is about 60401.6609457058. The cubic root of 3648360645 is about 1539.4511797386.

The spelling of 3648360645 in words is "three billion, six hundred forty-eight million, three hundred sixty thousand, six hundred forty-five".