3639655364 has 12 divisors (see below), whose sum is σ = 6517522704. Its totient is φ = 1777506024.

The previous prime is 3639655361. The next prime is 3639655367. The reversal of 3639655364 is 4635569363.

It is an interprime number because it is at equal distance from previous prime (3639655361) and next prime (3639655367).

It is not an unprimeable number, because it can be changed into a prime (3639655361) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10580222 + ... + 10580565.

It is an arithmetic number, because the mean of its divisors is an integer number (543126892).

Almost surely, 2^3639655364 is an apocalyptic number.

It is an amenable number.

3639655364 is a deficient number, since it is larger than the sum of its proper divisors (2877867340).

3639655364 is a wasteful number, since it uses less digits than its factorization.

3639655364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21160834 (or 21160832 counting only the distinct ones).

The product of its digits is 5248800, while the sum is 50.

The square root of 3639655364 is about 60329.5563053467. The cubic root of 3639655364 is about 1538.2257866132.

The spelling of 3639655364 in words is "three billion, six hundred thirty-nine million, six hundred fifty-five thousand, three hundred sixty-four".