648858768 has 40 divisors (see below), whose sum is σ = 1730294016. Its totient is φ = 209308800.

The previous prime is 648858761. The next prime is 648858779. The reversal of 648858768 is 867858846.

It is not an unprimeable number, because it can be changed into a prime (648858761) 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 7 ways as a sum of consecutive naturals, for example, 216543 + ... + 219518.

Almost surely, 2^648858768 is an apocalyptic number.

It is an amenable number.

648858768 is an abundant number, since it is smaller than the sum of its proper divisors (1081435248).

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

648858768 is a wasteful number, since it uses less digits than its factorization.

648858768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436103 (or 436097 counting only the distinct ones).

The product of its digits is 20643840, while the sum is 60.

The square root of 648858768 is about 25472.7063344278. The cubic root of 648858768 is about 865.7318443588.

It can be divided in two parts, 6488 and 58768, that added together give a palindrome (65256).

The spelling of 648858768 in words is "six hundred forty-eight million, eight hundred fifty-eight thousand, seven hundred sixty-eight".