89845281793 has 2 divisors, whose sum is σ = 89845281794. Its totient is φ = 89845281792.

The previous prime is 89845281781. The next prime is 89845281829. The reversal of 89845281793 is 39718254898.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60776054784 + 29069227009 = 246528^2 + 170497^2 .

It is a cyclic number.

It is not a de Polignac number, because 89845281793 - 2¹³ = 89845273601 is a prime.

It is not a weakly prime, because it can be changed into another prime (89845281763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44922640896 + 44922640897.

It is an arithmetic number, because the mean of its divisors is an integer number (44922640897).

Almost surely, 2^89845281793 is an apocalyptic number.

It is an amenable number.

89845281793 is a deficient number, since it is larger than the sum of its proper divisors (1).

89845281793 is an equidigital number, since it uses as much as digits as its factorization.

89845281793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34836480, while the sum is 64.

The spelling of 89845281793 in words is "eighty-nine billion, eight hundred forty-five million, two hundred eighty-one thousand, seven hundred ninety-three".