68385812 has 36 divisors (see below), whose sum is σ = 132332340. Its totient is φ = 30898560.

The previous prime is 68385803. The next prime is 68385833. The reversal of 68385812 is 21858386.

It can be written as a sum of positive squares in 2 ways, for example, as 30980356 + 37405456 = 5566^2 + 6116^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 68385812.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 110528 + ... + 111144.

Almost surely, 2^68385812 is an apocalyptic number.

It is an amenable number.

68385812 is a deficient number, since it is larger than the sum of its proper divisors (63946528).

68385812 is a wasteful number, since it uses less digits than its factorization.

68385812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872 (or 859 counting only the distinct ones).

The product of its digits is 92160, while the sum is 41.

The square root of 68385812 is about 8269.5714520161. The cubic root of 68385812 is about 408.9359918803.

The spelling of 68385812 in words is "sixty-eight million, three hundred eighty-five thousand, eight hundred twelve".