68185078 has 12 divisors (see below), whose sum is σ = 110750868. Its totient is φ = 31469880.

The previous prime is 68185069. The next prime is 68185097. The reversal of 68185078 is 87058186.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 100528 + ... + 101203.

It is an arithmetic number, because the mean of its divisors is an integer number (9229239).

Almost surely, 2^68185078 is an apocalyptic number.

68185078 is a deficient number, since it is larger than the sum of its proper divisors (42565790).

68185078 is a wasteful number, since it uses less digits than its factorization.

68185078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201759 (or 201746 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 43.

The square root of 68185078 is about 8257.4256278819. The cubic root of 68185078 is about 408.5354808987.

The spelling of 68185078 in words is "sixty-eight million, one hundred eighty-five thousand, seventy-eight".