68878173 has 64 divisors (see below), whose sum is σ = 121856000. Its totient is φ = 34292160.

The previous prime is 68878141. The next prime is 68878177. The reversal of 68878173 is 37187886.

It is not a de Polignac number, because 68878173 - 2⁵ = 68878141 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68878177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 254028 + ... + 254298.

It is an arithmetic number, because the mean of its divisors is an integer number (1904000).

Almost surely, 2^68878173 is an apocalyptic number.

It is an amenable number.

68878173 is a deficient number, since it is larger than the sum of its proper divisors (52977827).

68878173 is a wasteful number, since it uses less digits than its factorization.

68878173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327 (or 313 counting only the distinct ones).

The product of its digits is 451584, while the sum is 48.

The square root of 68878173 is about 8299.2874995387. The cubic root of 68878173 is about 409.9150587471.

The spelling of 68878173 in words is "sixty-eight million, eight hundred seventy-eight thousand, one hundred seventy-three".