648472718 has 16 divisors (see below), whose sum is σ = 1074708000. Its totient is φ = 291895296.

The previous prime is 648472711. The next prime is 648472753. The reversal of 648472718 is 817274846.

648472718 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648472711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 413843 + ... + 415406.

It is an arithmetic number, because the mean of its divisors is an integer number (67169250).

Almost surely, 2^648472718 is an apocalyptic number.

648472718 is a deficient number, since it is larger than the sum of its proper divisors (426235282).

648472718 is a wasteful number, since it uses less digits than its factorization.

648472718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829291.

The product of its digits is 602112, while the sum is 47.

The square root of 648472718 is about 25465.1274883909. The cubic root of 648472718 is about 865.5601161392.

The spelling of 648472718 in words is "six hundred forty-eight million, four hundred seventy-two thousand, seven hundred eighteen".