20047022569728 has 432 divisors, whose sum is σ = 72076536395136. Its totient is φ = 5206038773760.

The previous prime is 20047022569723. The next prime is 20047022569751. The reversal of 20047022569728 is 82796522074002.

20047022569728 is a `hidden beast` number, since 2 + 0 + 0 + 4 + 7 + 0 + 2 + 2 + 569 + 72 + 8 = 666.

It is a super-2 number, since 2×20047022569728² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20047022569723) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1829603226 + ... + 1829614182.

It is an arithmetic number, because the mean of its divisors is an integer number (166843834248).

Almost surely, 2^{20047022569728} is an apocalyptic number.

20047022569728 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20047022569728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36038268197568).

20047022569728 is an abundant number, since it is smaller than the sum of its proper divisors (52029513825408).

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

20047022569728 is a wasteful number, since it uses less digits than its factorization.

20047022569728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21310 (or 21293 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The spelling of 20047022569728 in words is "twenty trillion, forty-seven billion, twenty-two million, five hundred sixty-nine thousand, seven hundred twenty-eight".