20579930540928 has 512 divisors, whose sum is σ = 71010875059200. Its totient is φ = 5803966586880.

The previous prime is 20579930540903. The next prime is 20579930540933. The reversal of 20579930540928 is 82904503997502.

20579930540928 is a `hidden beast` number, since 2 + 0 + 57 + 9 + 9 + 30 + 540 + 9 + 2 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 32033550 + ... + 32669682.

It is an arithmetic number, because the mean of its divisors is an integer number (138693115350).

Almost surely, 2^{20579930540928} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20579930540928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35505437529600).

20579930540928 is an abundant number, since it is smaller than the sum of its proper divisors (50430944518272).

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

20579930540928 is a wasteful number, since it uses less digits than its factorization.

20579930540928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636227 (or 636209 counting only the distinct ones).

The product of its (nonzero) digits is 48988800, while the sum is 63.

The spelling of 20579930540928 in words is "twenty trillion, five hundred seventy-nine billion, nine hundred thirty million, five hundred forty thousand, nine hundred twenty-eight".