68471568 has 120 divisors (see below), whose sum is σ = 216923616. Its totient is φ = 20736000.

The previous prime is 68471561. The next prime is 68471587. The reversal of 68471568 is 86517486.

It is a happy number.

68471568 is a `hidden beast` number, since 6 + 84 + 7 + 1 + 568 = 666.

It is not an unprimeable number, because it can be changed into a prime (68471561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41968 + ... + 43568.

Almost surely, 2^68471568 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 68471568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108461808).

68471568 is an abundant number, since it is smaller than the sum of its proper divisors (148452048).

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

68471568 is a wasteful number, since it uses less digits than its factorization.

68471568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635 (or 1617 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 68471568 is about 8274.7548604173. The cubic root of 68471568 is about 409.1068561056.

The spelling of 68471568 in words is "sixty-eight million, four hundred seventy-one thousand, five hundred sixty-eight".