847991713472 has 56 divisors (see below), whose sum is σ = 1742471038800. Its totient is φ = 408972655616.

The previous prime is 847991713463. The next prime is 847991713553. The reversal of 847991713472 is 274317199748.

It is a super-2 number, since 2×847991713472² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1667078 + ... + 2115450.

Almost surely, 2^847991713472 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 847991713472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (871235519400).

847991713472 is an abundant number, since it is smaller than the sum of its proper divisors (894479325328).

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

847991713472 is a wasteful number, since it uses less digits than its factorization.

847991713472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449433 (or 449423 counting only the distinct ones).

The product of its digits is 21337344, while the sum is 62.

The spelling of 847991713472 in words is "eight hundred forty-seven billion, nine hundred ninety-one million, seven hundred thirteen thousand, four hundred seventy-two".