20028986143 has 2 divisors, whose sum is σ = 20028986144. Its totient is φ = 20028986142.

The previous prime is 20028986111. The next prime is 20028986179. The reversal of 20028986143 is 34168982002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20028986143 - 2⁵ = 20028986111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20028986143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20028986843) by changing a digit.

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 as a sum of consecutive naturals, namely, 10014493071 + 10014493072.

It is an arithmetic number, because the mean of its divisors is an integer number (10014493072).

Almost surely, 2^20028986143 is an apocalyptic number.

20028986143 is a deficient number, since it is larger than the sum of its proper divisors (1).

20028986143 is an equidigital number, since it uses as much as digits as its factorization.

20028986143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 43.

The spelling of 20028986143 in words is "twenty billion, twenty-eight million, nine hundred eighty-six thousand, one hundred forty-three".