68589568 has 48 divisors (see below), whose sum is σ = 138869640. Its totient is φ = 33865728.

The previous prime is 68589557. The next prime is 68589589. The reversal of 68589568 is 86598586.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218980 + ... + 219292.

Almost surely, 2^68589568 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 68589568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69434820).

68589568 is an abundant number, since it is smaller than the sum of its proper divisors (70280072).

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

68589568 is a wasteful number, since it uses less digits than its factorization.

68589568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442 (or 422 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 55.

The square root of 68589568 is about 8281.8819117396. The cubic root of 68589568 is about 409.3417317176.

The spelling of 68589568 in words is "sixty-eight million, five hundred eighty-nine thousand, five hundred sixty-eight".