648360868608 has 360 divisors, whose sum is σ = 2085701099328. Its totient is φ = 199563706368.

The previous prime is 648360868567. The next prime is 648360868619. The reversal of 648360868608 is 806868063846.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 18665785 + ... + 18700487.

Almost surely, 2^648360868608 is an apocalyptic number.

648360868608 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 648360868608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1042850549664).

648360868608 is an abundant number, since it is smaller than the sum of its proper divisors (1437340230720).

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

648360868608 is a wasteful number, since it uses less digits than its factorization.

648360868608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34801 (or 34778 counting only the distinct ones).

The product of its (nonzero) digits is 63700992, while the sum is 63.

The spelling of 648360868608 in words is "six hundred forty-eight billion, three hundred sixty million, eight hundred sixty-eight thousand, six hundred eight".