648313556848 has 40 divisors (see below), whose sum is σ = 1275111113360. Its totient is φ = 319254566400.

The previous prime is 648313556797. The next prime is 648313556879. The reversal of 648313556848 is 848655313846.

It is a happy number.

It is a congruent 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, 5525998 + ... + 5642098.

It is an arithmetic number, because the mean of its divisors is an integer number (31877777834).

Almost surely, 2^648313556848 is an apocalyptic number.

It is an amenable number.

648313556848 is a deficient number, since it is larger than the sum of its proper divisors (626797556512).

648313556848 is a wasteful number, since it uses less digits than its factorization.

648313556848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121385 (or 121379 counting only the distinct ones).

The product of its digits is 66355200, while the sum is 61.

The spelling of 648313556848 in words is "six hundred forty-eight billion, three hundred thirteen million, five hundred fifty-six thousand, eight hundred forty-eight".