68068536 has 64 divisors (see below), whose sum is σ = 176515200. Its totient is φ = 21859968.

The previous prime is 68068531. The next prime is 68068537. The reversal of 68068536 is 63586086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68068531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74595 + ... + 75501.

It is an arithmetic number, because the mean of its divisors is an integer number (2758050).

Almost surely, 2^68068536 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 68068536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88257600).

68068536 is an abundant number, since it is smaller than the sum of its proper divisors (108446664).

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

68068536 is a wasteful number, since it uses less digits than its factorization.

68068536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028 (or 1024 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 68068536 is about 8250.3658100717. The cubic root of 68068536 is about 408.3025917529.

The spelling of 68068536 in words is "sixty-eight million, sixty-eight thousand, five hundred thirty-six".