810069422389 has 2 divisors, whose sum is σ = 810069422390. Its totient is φ = 810069422388.

The previous prime is 810069422363. The next prime is 810069422413. The reversal of 810069422389 is 983224960018.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 535482942289 + 274586480100 = 731767^2 + 524010^2 .

It is a cyclic number.

It is not a de Polignac number, because 810069422389 - 2⁹ = 810069421877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (810069420389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405034711194 + 405034711195.

It is an arithmetic number, because the mean of its divisors is an integer number (405034711195).

Almost surely, 2^810069422389 is an apocalyptic number.

It is an amenable number.

810069422389 is a deficient number, since it is larger than the sum of its proper divisors (1).

810069422389 is an equidigital number, since it uses as much as digits as its factorization.

810069422389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1492992, while the sum is 52.

The spelling of 810069422389 in words is "eight hundred ten billion, sixty-nine million, four hundred twenty-two thousand, three hundred eighty-nine".