68247168 has 128 divisors (see below), whose sum is σ = 200931840. Its totient is φ = 20352000.

The previous prime is 68247161. The next prime is 68247181. The reversal of 68247168 is 86174286.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (68247161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 451893 + ... + 452043.

It is an arithmetic number, because the mean of its divisors is an integer number (1569780).

Almost surely, 2^68247168 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 68247168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100465920).

68247168 is an abundant number, since it is smaller than the sum of its proper divisors (132684672).

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

68247168 is a wasteful number, since it uses less digits than its factorization.

68247168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 274 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 68247168 is about 8261.1844187138. The cubic root of 68247168 is about 408.6594487479.

The spelling of 68247168 in words is "sixty-eight million, two hundred forty-seven thousand, one hundred sixty-eight".