20593908784 has 40 divisors (see below), whose sum is σ = 42894397440. Its totient is φ = 9547449408.

The previous prime is 20593908779. The next prime is 20593908799. The reversal of 20593908784 is 48780939502.

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 7 ways as a sum of consecutive naturals, for example, 706384 + ... + 734959.

It is an arithmetic number, because the mean of its divisors is an integer number (1072359936).

Almost surely, 2^20593908784 is an apocalyptic number.

It is an amenable number.

20593908784 is an abundant number, since it is smaller than the sum of its proper divisors (22300488656).

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

20593908784 is a wasteful number, since it uses less digits than its factorization.

20593908784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441417 (or 1441411 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 20593908784 in words is "twenty billion, five hundred ninety-three million, nine hundred eight thousand, seven hundred eighty-four".