648260812 has 12 divisors (see below), whose sum is σ = 1136986200. Its totient is φ = 323407616.

The previous prime is 648260803. The next prime is 648260827. The reversal of 648260812 is 218062846.

648260812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 178678 + ... + 182269.

It is an arithmetic number, because the mean of its divisors is an integer number (94748850).

Almost surely, 2^648260812 is an apocalyptic number.

It is an amenable number.

648260812 is a deficient number, since it is larger than the sum of its proper divisors (488725388).

648260812 is a wasteful number, since it uses less digits than its factorization.

648260812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361400 (or 361398 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 648260812 is about 25460.9664388452. The cubic root of 648260812 is about 865.4658241413.

The spelling of 648260812 in words is "six hundred forty-eight million, two hundred sixty thousand, eight hundred twelve".