20593681944 has 64 divisors (see below), whose sum is σ = 56208055680. Its totient is φ = 6235680000.

The previous prime is 20593681939. The next prime is 20593681957. The reversal of 20593681944 is 44918639502.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 319219 + ... + 378269.

It is an arithmetic number, because the mean of its divisors is an integer number (878250870).

Almost surely, 2^20593681944 is an apocalyptic number.

20593681944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20593681944 is an abundant number, since it is smaller than the sum of its proper divisors (35614373736).

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

20593681944 is a wasteful number, since it uses less digits than its factorization.

20593681944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60392 (or 60388 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 51.

The spelling of 20593681944 in words is "twenty billion, five hundred ninety-three million, six hundred eighty-one thousand, nine hundred forty-four".