878298854975 has 48 divisors (see below), whose sum is σ = 1161608985600. Its totient is φ = 656843541120.

The previous prime is 878298854971. The next prime is 878298855001. The reversal of 878298854975 is 579458892878.

It is a Cunningham number, because it is equal to 937176²-1.

It is not a de Polignac number, because 878298854975 - 2² = 878298854971 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 878298854975.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878298854971) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 74030894 + ... + 74042756.

It is an arithmetic number, because the mean of its divisors is an integer number (24200187200).

Almost surely, 2^878298854975 is an apocalyptic number.

878298854975 is a deficient number, since it is larger than the sum of its proper divisors (283310130625).

878298854975 is a wasteful number, since it uses less digits than its factorization.

878298854975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13944 (or 13939 counting only the distinct ones).

The product of its digits is 3251404800, while the sum is 80.

The spelling of 878298854975 in words is "eight hundred seventy-eight billion, two hundred ninety-eight million, eight hundred fifty-four thousand, nine hundred seventy-five".