68316178 has 16 divisors (see below), whose sum is σ = 117311040. Its totient is φ = 29228976.

The previous prime is 68316169. The next prime is 68316179. The reversal of 68316178 is 87161386.

It is a self number, because there is not a number n which added to its sum of digits gives 68316178.

It is not an unprimeable number, because it can be changed into a prime (68316179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5208 + ... + 12796.

It is an arithmetic number, because the mean of its divisors is an integer number (7331940).

Almost surely, 2^68316178 is an apocalyptic number.

68316178 is a deficient number, since it is larger than the sum of its proper divisors (48994862).

68316178 is a wasteful number, since it uses less digits than its factorization.

68316178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8241.

The product of its digits is 48384, while the sum is 40.

The square root of 68316178 is about 8265.3601252456. The cubic root of 68316178 is about 408.7971447584.

It can be divided in two parts, 683 and 16178, that added together give a palindrome (16861).

The spelling of 68316178 in words is "sixty-eight million, three hundred sixteen thousand, one hundred seventy-eight".