847748046816 has 384 divisors, whose sum is σ = 2735913438720. Its totient is φ = 253250150400.

The previous prime is 847748046811. The next prime is 847748046833. The reversal of 847748046816 is 618640847748.

847748046816 is a `hidden beast` number, since 8 + 4 + 77 + 480 + 4 + 6 + 81 + 6 = 666.

847748046816 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (847748046811) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 195466600 + ... + 195470936.

It is an arithmetic number, because the mean of its divisors is an integer number (7124774580).

Almost surely, 2^847748046816 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 847748046816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1367956719360).

847748046816 is an abundant number, since it is smaller than the sum of its proper divisors (1888165391904).

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

847748046816 is a wasteful number, since it uses less digits than its factorization.

847748046816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4655 (or 4641 counting only the distinct ones).

The product of its (nonzero) digits is 57802752, while the sum is 63.

The spelling of 847748046816 in words is "eight hundred forty-seven billion, seven hundred forty-eight million, forty-six thousand, eight hundred sixteen".