878741368885128 has 64 divisors (see below), whose sum is σ = 2591679613317120. Its totient is φ = 242969963745600.

The previous prime is 878741368885117. The next prime is 878741368885153. The reversal of 878741368885128 is 821588863147878.

It is a Harshad number since it is a multiple of its sum of digits (84).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84364565538 + ... + 84364575953.

It is an arithmetic number, because the mean of its divisors is an integer number (40494993958080).

Almost surely, 2^{878741368885128} is an apocalyptic number.

It is an amenable number.

878741368885128 is an abundant number, since it is smaller than the sum of its proper divisors (1712938244431992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

878741368885128 is a wasteful number, since it uses less digits than its factorization.

878741368885128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168729141538 (or 168729141534 counting only the distinct ones).

The product of its digits is 9248440320, while the sum is 84.

The spelling of 878741368885128 in words is "eight hundred seventy-eight trillion, seven hundred forty-one billion, three hundred sixty-eight million, eight hundred eighty-five thousand, one hundred twenty-eight".