847978879748 has 96 divisors (see below), whose sum is σ = 1997426366208. Its totient is φ = 304206336000.

The previous prime is 847978879717. The next prime is 847978879751.

847978879748 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 847978879748.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1341536 + ... + 1869672.

It is an arithmetic number, because the mean of its divisors is an integer number (20806524648).

Almost surely, 2^847978879748 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 847978879748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (998713183104).

847978879748 is an abundant number, since it is smaller than the sum of its proper divisors (1149447486460).

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

847978879748 is a wasteful number, since it uses less digits than its factorization.

847978879748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528573 (or 528571 counting only the distinct ones).

The product of its digits is 12745506816, while the sum is 86.

The spelling of 847978879748 in words is "eight hundred forty-seven billion, nine hundred seventy-eight million, eight hundred seventy-nine thousand, seven hundred forty-eight".