68881695 has 16 divisors (see below), whose sum is σ = 111857280. Its totient is φ = 36188064.

The previous prime is 68881651. The next prime is 68881717. The reversal of 68881695 is 59618886.

It is not a de Polignac number, because 68881695 - 2⁷ = 68881567 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 33265 + ... + 35274.

It is an arithmetic number, because the mean of its divisors is an integer number (6991080).

Almost surely, 2^68881695 is an apocalyptic number.

68881695 is a deficient number, since it is larger than the sum of its proper divisors (42975585).

68881695 is a wasteful number, since it uses less digits than its factorization.

68881695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68614.

The product of its digits is 829440, while the sum is 51.

The square root of 68881695 is about 8299.4996837159. The cubic root of 68881695 is about 409.9220454608.

The spelling of 68881695 in words is "sixty-eight million, eight hundred eighty-one thousand, six hundred ninety-five".