3648816680 has 32 divisors (see below), whose sum is σ = 8274493440. Its totient is φ = 1448032320.

The previous prime is 3648816673. The next prime is 3648816697. The reversal of 3648816680 is 866188463.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 354056 + ... + 364215.

It is an arithmetic number, because the mean of its divisors is an integer number (258577920).

Almost surely, 2^3648816680 is an apocalyptic number.

It is an amenable number.

3648816680 is an abundant number, since it is smaller than the sum of its proper divisors (4625676760).

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

3648816680 is a wasteful number, since it uses less digits than its factorization.

3648816680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718409 (or 718405 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 50.

The square root of 3648816680 is about 60405.4358481089. The cubic root of 3648816680 is about 1539.5153194476.

The spelling of 3648816680 in words is "three billion, six hundred forty-eight million, eight hundred sixteen thousand, six hundred eighty".