68013568 has 60 divisors (see below), whose sum is σ = 158139432. Its totient is φ = 29137920.

The previous prime is 68013563. The next prime is 68013577. The reversal of 68013568 is 86531086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68013563) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23733 + ... + 26443.

Almost surely, 2^68013568 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 68013568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79069716).

68013568 is an abundant number, since it is smaller than the sum of its proper divisors (90125864).

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

68013568 is an equidigital number, since it uses as much as digits as its factorization.

68013568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2743 (or 2720 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 68013568 is about 8247.0338910423. The cubic root of 68013568 is about 408.1926553944.

The spelling of 68013568 in words is "sixty-eight million, thirteen thousand, five hundred sixty-eight".