43984795818 has 16 divisors (see below), whose sum is σ = 90115191936. Its totient is φ = 14303998560.

The previous prime is 43984795781. The next prime is 43984795819. The reversal of 43984795818 is 81859748934.

It is not an unprimeable number, because it can be changed into a prime (43984795819) 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 7 ways as a sum of consecutive naturals, for example, 89399746 + ... + 89400237.

It is an arithmetic number, because the mean of its divisors is an integer number (5632199496).

Almost surely, 2^43984795818 is an apocalyptic number.

43984795818 is an abundant number, since it is smaller than the sum of its proper divisors (46130396118).

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

43984795818 is a wasteful number, since it uses less digits than its factorization.

43984795818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178800029.

The product of its digits is 69672960, while the sum is 66.

The spelling of 43984795818 in words is "forty-three billion, nine hundred eighty-four million, seven hundred ninety-five thousand, eight hundred eighteen".