20686425050444 has 12 divisors (see below), whose sum is σ = 36203107999968. Its totient is φ = 10342679907600.

The previous prime is 20686425050441. The next prime is 20686425050519. The reversal of 20686425050444 is 44405052468602.

20686425050444 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 20686425050392 and 20686425050401.

It is not an unprimeable number, because it can be changed into a prime (20686425050441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133067012 + ... + 133222379.

It is an arithmetic number, because the mean of its divisors is an integer number (3016925666664).

Almost surely, 2^{20686425050444} is an apocalyptic number.

It is an amenable number.

20686425050444 is a deficient number, since it is larger than the sum of its proper divisors (15516682949524).

20686425050444 is a wasteful number, since it uses less digits than its factorization.

20686425050444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266308816 (or 266308814 counting only the distinct ones).

The product of its (nonzero) digits is 7372800, while the sum is 50.

The spelling of 20686425050444 in words is "twenty trillion, six hundred eighty-six billion, four hundred twenty-five million, fifty thousand, four hundred forty-four".