878346999312 has 80 divisors (see below), whose sum is σ = 2296834600320. Its totient is φ = 289205441536.

The previous prime is 878346999097. The next prime is 878346999331. The reversal of 878346999312 is 213999643878.

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, 4226053 + ... + 4429019.

It is an arithmetic number, because the mean of its divisors is an integer number (28710432504).

Almost surely, 2^878346999312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 878346999312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1148417300160).

878346999312 is an abundant number, since it is smaller than the sum of its proper divisors (1418487601008).

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

878346999312 is a wasteful number, since it uses less digits than its factorization.

878346999312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204080 (or 204074 counting only the distinct ones).

The product of its digits is 141087744, while the sum is 69.

The spelling of 878346999312 in words is "eight hundred seventy-eight billion, three hundred forty-six million, nine hundred ninety-nine thousand, three hundred twelve".