809140700033489 has 2 divisors, whose sum is σ = 809140700033490. Its totient is φ = 809140700033488.

The previous prime is 809140700033453. The next prime is 809140700033503. The reversal of 809140700033489 is 984330007041908.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 723426284662225 + 85714415371264 = 26896585^2 + 9258208^2 .

It is a cyclic number.

It is not a de Polignac number, because 809140700033489 - 2³² = 809136405066193 is a prime.

It is not a weakly prime, because it can be changed into another prime (809140700035489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404570350016744 + 404570350016745.

It is an arithmetic number, because the mean of its divisors is an integer number (404570350016745).

Almost surely, 2^{809140700033489} is an apocalyptic number.

It is an amenable number.

809140700033489 is a deficient number, since it is larger than the sum of its proper divisors (1).

809140700033489 is an equidigital number, since it uses as much as digits as its factorization.

809140700033489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5225472, while the sum is 56.

The spelling of 809140700033489 in words is "eight hundred nine trillion, one hundred forty billion, seven hundred million, thirty-three thousand, four hundred eighty-nine".