798678876984 has 64 divisors (see below), whose sum is σ = 2033565022080. Its totient is φ = 261328368000.

The previous prime is 798678876979. The next prime is 798678876997. The reversal of 798678876984 is 489678876897.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 798678876984.

It is a congruent number.

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, 163279 + ... + 1274369.

It is an arithmetic number, because the mean of its divisors is an integer number (31774453470).

Almost surely, 2^798678876984 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 798678876984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1016782511040).

798678876984 is an abundant number, since it is smaller than the sum of its proper divisors (1234886145096).

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

798678876984 is a wasteful number, since it uses less digits than its factorization.

798678876984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111652 (or 1111648 counting only the distinct ones).

The product of its digits is 16387080192, while the sum is 87.

Subtracting from 798678876984 its sum of digits (87), we obtain a palindrome (798678876897).

The spelling of 798678876984 in words is "seven hundred ninety-eight billion, six hundred seventy-eight million, eight hundred seventy-six thousand, nine hundred eighty-four".