648532648 has 16 divisors (see below), whose sum is σ = 1255224960. Its totient is φ = 313806000.

The previous prime is 648532639. The next prime is 648532667. The reversal of 648532648 is 846235846.

648532648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 648532598 and 648532607.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1307278 + ... + 1307773.

It is an arithmetic number, because the mean of its divisors is an integer number (78451560).

Almost surely, 2^648532648 is an apocalyptic number.

It is an amenable number.

648532648 is a deficient number, since it is larger than the sum of its proper divisors (606692312).

648532648 is a wasteful number, since it uses less digits than its factorization.

648532648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2615088 (or 2615084 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 46.

The square root of 648532648 is about 25466.3041684497. The cubic root of 648532648 is about 865.5867795173.

The spelling of 648532648 in words is "six hundred forty-eight million, five hundred thirty-two thousand, six hundred forty-eight".