6485644600 has 48 divisors (see below), whose sum is σ = 15087337920. Its totient is φ = 2592844800.

The previous prime is 6485644541. The next prime is 6485644637. The reversal of 6485644600 is 64465846.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 408409 + ... + 423991.

It is an arithmetic number, because the mean of its divisors is an integer number (314319540).

Almost surely, 2^6485644600 is an apocalyptic number.

It is an amenable number.

6485644600 is an abundant number, since it is smaller than the sum of its proper divisors (8601693320).

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

6485644600 is a wasteful number, since it uses less digits than its factorization.

6485644600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17680 (or 17671 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 43.

The square root of 6485644600 is about 80533.4998618587. The cubic root of 6485644600 is about 1864.8806762395.

The spelling of 6485644600 in words is "six billion, four hundred eighty-five million, six hundred forty-four thousand, six hundred".