68375390 has 16 divisors (see below), whose sum is σ = 123407280. Its totient is φ = 27276480.

The previous prime is 68375383. The next prime is 68375399. The reversal of 68375390 is 9357386.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68375399) by changing a digit.

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, 5231 + ... + 12810.

It is an arithmetic number, because the mean of its divisors is an integer number (7712955).

Almost surely, 2^68375390 is an apocalyptic number.

68375390 is a deficient number, since it is larger than the sum of its proper divisors (55031890).

68375390 is a wasteful number, since it uses less digits than its factorization.

68375390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18427.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 68375390 is about 8268.9412865251. The cubic root of 68375390 is about 408.9152168720.

The spelling of 68375390 in words is "sixty-eight million, three hundred seventy-five thousand, three hundred ninety".