68907168 has 72 divisors (see below), whose sum is σ = 213778656. Its totient is φ = 20880000.

The previous prime is 68907121. The next prime is 68907169. The reversal of 68907168 is 86170986.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (68907169) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7708 + ... + 14043.

It is an arithmetic number, because the mean of its divisors is an integer number (2969148).

Almost surely, 2^68907168 is an apocalyptic number.

It is an amenable number.

68907168 is an abundant number, since it is smaller than the sum of its proper divisors (144871488).

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

68907168 is a wasteful number, since it uses less digits than its factorization.

68907168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21778 (or 21767 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 68907168 is about 8301.0341524415. The cubic root of 68907168 is about 409.9725700467.

The spelling of 68907168 in words is "sixty-eight million, nine hundred seven thousand, one hundred sixty-eight".