648018008 has 64 divisors (see below), whose sum is σ = 1394565120. Its totient is φ = 279417600.

The previous prime is 648017983. The next prime is 648018013. The reversal of 648018008 is 800810846.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 255788 + ... + 258308.

It is an arithmetic number, because the mean of its divisors is an integer number (21790080).

Almost surely, 2^648018008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 648018008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (697282560).

648018008 is an abundant number, since it is smaller than the sum of its proper divisors (746547112).

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

648018008 is a wasteful number, since it uses less digits than its factorization.

648018008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2688 (or 2684 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 648018008 is about 25456.1978307838. The cubic root of 648018008 is about 865.3577581689.

The spelling of 648018008 in words is "six hundred forty-eight million, eighteen thousand, eight".