68281678 has 16 divisors (see below), whose sum is σ = 105469056. Its totient is φ = 33135480.

The previous prime is 68281669. The next prime is 68281679. The reversal of 68281678 is 87618286.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68281679) 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, 11583 + ... + 16453.

It is an arithmetic number, because the mean of its divisors is an integer number (6591816).

Almost surely, 2^68281678 is an apocalyptic number.

68281678 is a deficient number, since it is larger than the sum of its proper divisors (37187378).

68281678 is a wasteful number, since it uses less digits than its factorization.

68281678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5079.

The product of its digits is 258048, while the sum is 46.

The square root of 68281678 is about 8263.2728382887. The cubic root of 68281678 is about 408.7283183267.

The spelling of 68281678 in words is "sixty-eight million, two hundred eighty-one thousand, six hundred seventy-eight".