20927688183 has 12 divisors (see below), whose sum is σ = 30230183880. Its totient is φ = 13951191696.

The previous prime is 20927688181. The next prime is 20927688203. The reversal of 20927688183 is 38188672902.

It is a happy number.

It is not a de Polignac number, because 20927688183 - 2¹ = 20927688181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20927688181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 298453 + ... + 361841.

It is an arithmetic number, because the mean of its divisors is an integer number (2519181990).

Almost surely, 2^20927688183 is an apocalyptic number.

20927688183 is a deficient number, since it is larger than the sum of its proper divisors (9302495697).

20927688183 is a wasteful number, since it uses less digits than its factorization.

20927688183 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100078 (or 100075 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 20927688183 in words is "twenty billion, nine hundred twenty-seven million, six hundred eighty-eight thousand, one hundred eighty-three".