648118048 has 24 divisors (see below), whose sum is σ = 1310470812. Its totient is φ = 315300096.

The previous prime is 648118039. The next prime is 648118087. The reversal of 648118048 is 840811846.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 552626064 + 95491984 = 23508^2 + 9772^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 648118048.

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, 272515 + ... + 274882.

Almost surely, 2^648118048 is an apocalyptic number.

It is an amenable number.

648118048 is an abundant number, since it is smaller than the sum of its proper divisors (662352764).

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

648118048 is a wasteful number, since it uses less digits than its factorization.

648118048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547444 (or 547436 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 40.

The square root of 648118048 is about 25458.1626988281. The cubic root of 648118048 is about 865.4022867337.

The spelling of 648118048 in words is "six hundred forty-eight million, one hundred eighteen thousand, forty-eight".