43818985444 has 12 divisors (see below), whose sum is σ = 82581934204. Its totient is φ = 20224147104.

The previous prime is 43818985423. The next prime is 43818985451. The reversal of 43818985444 is 44458981834.

43818985444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4745556544 + 39073428900 = 68888^2 + 197670^2 .

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421336347 + ... + 421336450.

Almost surely, 2^43818985444 is an apocalyptic number.

It is an amenable number.

43818985444 is a deficient number, since it is larger than the sum of its proper divisors (38762948760).

43818985444 is a wasteful number, since it uses less digits than its factorization.

43818985444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842672814 (or 842672812 counting only the distinct ones).

The product of its digits is 17694720, while the sum is 58.

The spelling of 43818985444 in words is "forty-three billion, eight hundred eighteen million, nine hundred eighty-five thousand, four hundred forty-four".