68085812 has 12 divisors (see below), whose sum is σ = 120264480. Its totient is φ = 33724536.

The previous prime is 68085811. The next prime is 68085839. The reversal of 68085812 is 21858086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68085811) 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 3 ways as a sum of consecutive naturals, for example, 79112 + ... + 79967.

It is an arithmetic number, because the mean of its divisors is an integer number (10022040).

Almost surely, 2^68085812 is an apocalyptic number.

It is an amenable number.

68085812 is a deficient number, since it is larger than the sum of its proper divisors (52178668).

68085812 is a wasteful number, since it uses less digits than its factorization.

68085812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159190 (or 159188 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 38.

The square root of 68085812 is about 8251.4127275273. The cubic root of 68085812 is about 408.3371316413.

The spelling of 68085812 in words is "sixty-eight million, eighty-five thousand, eight hundred twelve".