8439688838432 has 96 divisors (see below), whose sum is σ = 17241802119360. Its totient is φ = 4063372508160.

The previous prime is 8439688838431. The next prime is 8439688838443. The reversal of 8439688838432 is 2348388869348.

It is a Harshad number since it is a multiple of its sum of digits (74).

It is a self number, because there is not a number n which added to its sum of digits gives 8439688838432.

It is not an unprimeable number, because it can be changed into a prime (8439688838431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52089707 + ... + 52251477.

It is an arithmetic number, because the mean of its divisors is an integer number (179602105410).

Almost surely, 2^{8439688838432} 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 8439688838432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8620901059680).

8439688838432 is an abundant number, since it is smaller than the sum of its proper divisors (8802113280928).

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

8439688838432 is a wasteful number, since it uses less digits than its factorization.

8439688838432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162274 (or 162266 counting only the distinct ones).

The product of its digits is 1528823808, while the sum is 74.

The spelling of 8439688838432 in words is "eight trillion, four hundred thirty-nine billion, six hundred eighty-eight million, eight hundred thirty-eight thousand, four hundred thirty-two".