648496880 has 20 divisors (see below), whose sum is σ = 1507755432. Its totient is φ = 259398720.

The previous prime is 648496873. The next prime is 648496897. The reversal of 648496880 is 88694846.

648496880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

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, 4053026 + ... + 4053185.

Almost surely, 2^648496880 is an apocalyptic number.

It is an amenable number.

648496880 is an abundant number, since it is smaller than the sum of its proper divisors (859258552).

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

648496880 is a wasteful number, since it uses less digits than its factorization.

648496880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8106224 (or 8106218 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 53.

The square root of 648496880 is about 25465.6018974616. The cubic root of 648496880 is about 865.5708662207.

The spelling of 648496880 in words is "six hundred forty-eight million, four hundred ninety-six thousand, eight hundred eighty".