4399999999989 has 32 divisors (see below), whose sum is σ = 6466220513280. Its totient is φ = 2639124230400.

The previous prime is 4399999999981. The next prime is 4400000000009. The reversal of 4399999999989 is 9899999999934.

It is a happy number.

4399999999989 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4399999999989 - 2³ = 4399999999981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4399999999981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2945284 + ... + 4180274.

It is an arithmetic number, because the mean of its divisors is an integer number (202069391040).

Almost surely, 2^{4399999999989} is an apocalyptic number.

It is an amenable number.

4399999999989 is a deficient number, since it is larger than the sum of its proper divisors (2066220513291).

4399999999989 is a wasteful number, since it uses less digits than its factorization.

4399999999989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236121.

The product of its digits is 334731302496, while the sum is 105.

Subtracting 4399999999989 from its reverse (9899999999934), we obtain a palindrome (5499999999945).

It can be divided in two parts, 4 and 399999999989, that added together give a palindrome (399999999993).

The spelling of 4399999999989 in words is "four trillion, three hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred eighty-nine".