878648163 has 16 divisors (see below), whose sum is σ = 1205125152. Its totient is φ = 569088000.

The previous prime is 878648161. The next prime is 878648189. The reversal of 878648163 is 361846878.

It is a Cunningham number, because it is equal to 29642²-1.

It is not a de Polignac number, because 878648163 - 2¹ = 878648161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (878648161) 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 15 ways as a sum of consecutive naturals, for example, 14823 + ... + 44463.

It is an arithmetic number, because the mean of its divisors is an integer number (75320322).

Almost surely, 2^878648163 is an apocalyptic number.

878648163 is a deficient number, since it is larger than the sum of its proper divisors (326476989).

878648163 is a wasteful number, since it uses less digits than its factorization.

878648163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29926.

The product of its digits is 1548288, while the sum is 51.

The square root of 878648163 is about 29641.9999831320. Note that the first 4 decimals coincide. The cubic root of 878648163 is about 957.7930215489.

The spelling of 878648163 in words is "eight hundred seventy-eight million, six hundred forty-eight thousand, one hundred sixty-three".