878939821480 has 64 divisors (see below), whose sum is σ = 2393079863040. Its totient is φ = 283624276992.

The previous prime is 878939821451. The next prime is 878939821489. The reversal of 878939821480 is 84128939878.

It is not an unprimeable number, because it can be changed into a prime (878939821489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92320852 + ... + 92330371.

It is an arithmetic number, because the mean of its divisors is an integer number (37391872860).

Almost surely, 2^878939821480 is an apocalyptic number.

It is an amenable number.

878939821480 is an abundant number, since it is smaller than the sum of its proper divisors (1514140041560).

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

878939821480 is a wasteful number, since it uses less digits than its factorization.

878939821480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184651258 (or 184651254 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 67.

The spelling of 878939821480 in words is "eight hundred seventy-eight billion, nine hundred thirty-nine million, eight hundred twenty-one thousand, four hundred eighty".