8321984470128 has 40 divisors (see below), whose sum is σ = 24569668436608. Its totient is φ = 2377709848512.

The previous prime is 8321984470127. The next prime is 8321984470133. The reversal of 8321984470128 is 8210744891238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8321984470127) 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 7 ways as a sum of consecutive naturals, for example, 12383905126 + ... + 12383905797.

Almost surely, 2^{8321984470128} is an apocalyptic number.

It is an amenable number.

8321984470128 is an abundant number, since it is smaller than the sum of its proper divisors (16247683966480).

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

8321984470128 is a wasteful number, since it uses less digits than its factorization.

8321984470128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24767810941 (or 24767810935 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 57.

The spelling of 8321984470128 in words is "eight trillion, three hundred twenty-one billion, nine hundred eighty-four million, four hundred seventy thousand, one hundred twenty-eight".