43998878937216 has 512 divisors, whose sum is σ = 142255427973120. Its totient is φ = 11762346885120.

The previous prime is 43998878937203. The next prime is 43998878937263. The reversal of 43998878937216 is 61273987889934.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (84).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6261399495 + ... + 6261406521.

It is an arithmetic number, because the mean of its divisors is an integer number (277842632760).

Almost surely, 2^{43998878937216} 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 43998878937216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71127713986560).

43998878937216 is an abundant number, since it is smaller than the sum of its proper divisors (98256549035904).

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

43998878937216 is a wasteful number, since it uses less digits than its factorization.

43998878937216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7852 (or 7840 counting only the distinct ones).

The product of its digits is 7900913664, while the sum is 84.

The spelling of 43998878937216 in words is "forty-three trillion, nine hundred ninety-eight billion, eight hundred seventy-eight million, nine hundred thirty-seven thousand, two hundred sixteen".