648500488 has 16 divisors (see below), whose sum is σ = 1216237500. Its totient is φ = 324170496.

The previous prime is 648500483. The next prime is 648500491. The reversal of 648500488 is 884005846.

It can be written as a sum of positive squares in 2 ways, for example, as 546530884 + 101969604 = 23378^2 + 10098^2 .

It is not an unprimeable number, because it can be changed into a prime (648500483) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 38388 + ... + 52636.

Almost surely, 2^648500488 is an apocalyptic number.

It is an amenable number.

648500488 is a deficient number, since it is larger than the sum of its proper divisors (567737012).

648500488 is a wasteful number, since it uses less digits than its factorization.

648500488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19944 (or 19940 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 43.

The square root of 648500488 is about 25465.6727380213. The cubic root of 648500488 is about 865.5724714579.

The spelling of 648500488 in words is "six hundred forty-eight million, five hundred thousand, four hundred eighty-eight".