68385712 has 40 divisors (see below), whose sum is σ = 144298800. Its totient is φ = 31272192.

The previous prime is 68385673. The next prime is 68385749. The reversal of 68385712 is 21758386.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4938 + ... + 12694.

It is an arithmetic number, because the mean of its divisors is an integer number (3607470).

Almost surely, 2^68385712 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 68385712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72149400).

68385712 is an abundant number, since it is smaller than the sum of its proper divisors (75913088).

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

68385712 is a wasteful number, since it uses less digits than its factorization.

68385712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7813 (or 7807 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 68385712 is about 8269.5654057514. The cubic root of 68385712 is about 408.9357925523.

The spelling of 68385712 in words is "sixty-eight million, three hundred eighty-five thousand, seven hundred twelve".