8446438512 has 80 divisors (see below), whose sum is σ = 24384763680. Its totient is φ = 2799180288.

The previous prime is 8446438499. The next prime is 8446438513. The reversal of 8446438512 is 2158346448.

8446438512 is a `hidden beast` number, since 8 + 44 + 64 + 38 + 512 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8446438513) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 18228 + ... + 131244.

It is an arithmetic number, because the mean of its divisors is an integer number (304809546).

Almost surely, 2^8446438512 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 8446438512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12192381840).

8446438512 is an abundant number, since it is smaller than the sum of its proper divisors (15938325168).

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

8446438512 is a wasteful number, since it uses less digits than its factorization.

8446438512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113207 (or 113195 counting only the distinct ones).

The product of its digits is 737280, while the sum is 45.

The square root of 8446438512 is about 91904.5075717182. The cubic root of 8446438512 is about 2036.5318581239.

The spelling of 8446438512 in words is "eight billion, four hundred forty-six million, four hundred thirty-eight thousand, five hundred twelve".