68409158 has 16 divisors (see below), whose sum is σ = 110315520. Its totient is φ = 31714056.

The previous prime is 68409149. The next prime is 68409161. The reversal of 68409158 is 85190486.

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 7 ways as a sum of consecutive naturals, for example, 17366 + ... + 20937.

It is an arithmetic number, because the mean of its divisors is an integer number (6894720).

Almost surely, 2^68409158 is an apocalyptic number.

68409158 is a deficient number, since it is larger than the sum of its proper divisors (41906362).

68409158 is a wasteful number, since it uses less digits than its factorization.

68409158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38371.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 68409158 is about 8270.9828920147. The cubic root of 68409158 is about 408.9825216754.

The spelling of 68409158 in words is "sixty-eight million, four hundred nine thousand, one hundred fifty-eight".