648700498368 has 392 divisors, whose sum is σ = 2145587190656. Its totient is φ = 193155840000.

The previous prime is 648700498363. The next prime is 648700498409. The reversal of 648700498368 is 863894007846.

648700498368 is a `hidden beast` number, since 6 + 4 + 87 + 0 + 0 + 498 + 3 + 68 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648700498363) 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 55 ways as a sum of consecutive naturals, for example, 18785118 + ... + 18819618.

Almost surely, 2^648700498368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 648700498368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1072793595328).

648700498368 is an abundant number, since it is smaller than the sum of its proper divisors (1496886692288).

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

648700498368 is a wasteful number, since it uses less digits than its factorization.

648700498368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34575 (or 34550 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 63.

The spelling of 648700498368 in words is "six hundred forty-eight billion, seven hundred million, four hundred ninety-eight thousand, three hundred sixty-eight".