84684424208 has 20 divisors (see below), whose sum is σ = 164160317100. Its totient is φ = 42320471424.

The previous prime is 84684424169. The next prime is 84684424229. The reversal of 84684424208 is 80242448648.

It can be written as a sum of positive squares in 2 ways, for example, as 60904316944 + 23780107264 = 246788^2 + 154208^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1326635 + ... + 1389002.

It is an arithmetic number, because the mean of its divisors is an integer number (8208015855).

Almost surely, 2^84684424208 is an apocalyptic number.

It is an amenable number.

84684424208 is a deficient number, since it is larger than the sum of its proper divisors (79475892892).

84684424208 is a wasteful number, since it uses less digits than its factorization.

84684424208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2717594 (or 2717588 counting only the distinct ones).

The product of its (nonzero) digits is 3145728, while the sum is 50.

The spelling of 84684424208 in words is "eighty-four billion, six hundred eighty-four million, four hundred twenty-four thousand, two hundred eight".