68805648 has 60 divisors (see below), whose sum is σ = 194471680. Its totient is φ = 22707648.

The previous prime is 68805637. The next prime is 68805677. The reversal of 68805648 is 84650886.

68805648 is a `hidden beast` number, since 6 + 8 + 80 + 564 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12513 + ... + 17151.

Almost surely, 2^68805648 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 68805648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97235840).

68805648 is an abundant number, since it is smaller than the sum of its proper divisors (125666032).

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

68805648 is a wasteful number, since it uses less digits than its factorization.

68805648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4756 (or 4747 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The square root of 68805648 is about 8294.9169977764. The cubic root of 68805648 is about 409.7711354071.

The spelling of 68805648 in words is "sixty-eight million, eight hundred five thousand, six hundred forty-eight".