20226650789 has 2 divisors, whose sum is σ = 20226650790. Its totient is φ = 20226650788.

The previous prime is 20226650701. The next prime is 20226650867. The reversal of 20226650789 is 98705662202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12267334564 + 7959316225 = 110758^2 + 89215^2 .

It is a cyclic number.

It is not a de Polignac number, because 20226650789 - 2²⁴ = 20209873573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20226653789) 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, 10113325394 + 10113325395.

It is an arithmetic number, because the mean of its divisors is an integer number (10113325395).

Almost surely, 2^20226650789 is an apocalyptic number.

It is an amenable number.

20226650789 is a deficient number, since it is larger than the sum of its proper divisors (1).

20226650789 is an equidigital number, since it uses as much as digits as its factorization.

20226650789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 20226650789 in words is "twenty billion, two hundred twenty-six million, six hundred fifty thousand, seven hundred eighty-nine".