20527144843 has 2 divisors, whose sum is σ = 20527144844. Its totient is φ = 20527144842.

The previous prime is 20527144801. The next prime is 20527144919. The reversal of 20527144843 is 34844172502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20527144843 - 2⁹ = 20527144331 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20527144796 and 20527144805.

It is not a weakly prime, because it can be changed into another prime (20527144243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10263572421 + 10263572422.

It is an arithmetic number, because the mean of its divisors is an integer number (10263572422).

Almost surely, 2^20527144843 is an apocalyptic number.

20527144843 is a deficient number, since it is larger than the sum of its proper divisors (1).

20527144843 is an equidigital number, since it uses as much as digits as its factorization.

20527144843 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 215040, while the sum is 40.

The spelling of 20527144843 in words is "twenty billion, five hundred twenty-seven million, one hundred forty-four thousand, eight hundred forty-three".