20016927793 has 2 divisors, whose sum is σ = 20016927794. Its totient is φ = 20016927792.

The previous prime is 20016927787. The next prime is 20016927803. The reversal of 20016927793 is 39772961002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14242751649 + 5774176144 = 119343^2 + 75988^2 .

It is a cyclic number.

It is not a de Polignac number, because 20016927793 - 2¹⁷ = 20016796721 is a prime.

It is not a weakly prime, because it can be changed into another prime (20016924793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10008463896 + 10008463897.

It is an arithmetic number, because the mean of its divisors is an integer number (10008463897).

Almost surely, 2^20016927793 is an apocalyptic number.

It is an amenable number.

20016927793 is a deficient number, since it is larger than the sum of its proper divisors (1).

20016927793 is an equidigital number, since it uses as much as digits as its factorization.

20016927793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 285768, while the sum is 46.

The spelling of 20016927793 in words is "twenty billion, sixteen million, nine hundred twenty-seven thousand, seven hundred ninety-three".