805534840741 has 2 divisors, whose sum is σ = 805534840742. Its totient is φ = 805534840740.

The previous prime is 805534840723. The next prime is 805534840829. The reversal of 805534840741 is 147048435508.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 411238755841 + 394296084900 = 641279^2 + 627930^2 .

It is a cyclic number.

It is not a de Polignac number, because 805534840741 - 2¹³ = 805534832549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (805534840441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402767420370 + 402767420371.

It is an arithmetic number, because the mean of its divisors is an integer number (402767420371).

Almost surely, 2^805534840741 is an apocalyptic number.

It is an amenable number.

805534840741 is a deficient number, since it is larger than the sum of its proper divisors (1).

805534840741 is an equidigital number, since it uses as much as digits as its factorization.

805534840741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2150400, while the sum is 49.

It can be divided in two parts, 80553 and 4840741, that added together give a palindrome (4921294).

The spelling of 805534840741 in words is "eight hundred five billion, five hundred thirty-four million, eight hundred forty thousand, seven hundred forty-one".