20210020984838 has 16 divisors (see below), whose sum is σ = 32965789398624. Its totient is φ = 9253554917760.

The previous prime is 20210020984837. The next prime is 20210020984843. The reversal of 20210020984838 is 83848902001202.

It is a junction number, because it is equal to n+sod(n) for n = 20210020984792 and 20210020984801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210020984837) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8032598498 + ... + 8032601013.

It is an arithmetic number, because the mean of its divisors is an integer number (2060361837414).

Almost surely, 2^{20210020984838} is an apocalyptic number.

20210020984838 is a deficient number, since it is larger than the sum of its proper divisors (12755768413786).

20210020984838 is a wasteful number, since it uses less digits than its factorization.

20210020984838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16065199567.

The product of its (nonzero) digits is 442368, while the sum is 47.

The spelling of 20210020984838 in words is "twenty trillion, two hundred ten billion, twenty million, nine hundred eighty-four thousand, eight hundred thirty-eight".