6398338944789 has 24 divisors (see below), whose sum is σ = 10135017644544. Its totient is φ = 3857478648000.

The previous prime is 6398338944763. The next prime is 6398338944839. The reversal of 6398338944789 is 9874498338936.

6398338944789 is a `hidden beast` number, since 6 + 3 + 98 + 3 + 3 + 8 + 9 + 447 + 89 = 666.

6398338944789 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 6398338944789 - 2²⁹ = 6397802073877 is a prime.

It is a super-2 number, since 2×6398338944789² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6398338944689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 169168752 + ... + 169206569.

It is an arithmetic number, because the mean of its divisors is an integer number (422292401856).

Almost surely, 2^{6398338944789} is an apocalyptic number.

It is an amenable number.

6398338944789 is a deficient number, since it is larger than the sum of its proper divisors (3736678699755).

6398338944789 is a wasteful number, since it uses less digits than its factorization.

6398338944789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338375529 (or 338375526 counting only the distinct ones).

The product of its digits is 6772211712, while the sum is 81.

The spelling of 6398338944789 in words is "six trillion, three hundred ninety-eight billion, three hundred thirty-eight million, nine hundred forty-four thousand, seven hundred eighty-nine".