85352799794749 has 2 divisors, whose sum is σ = 85352799794750. Its totient is φ = 85352799794748.

The previous prime is 85352799794677. The next prime is 85352799794777. The reversal of 85352799794749 is 94749799725358.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67838993292249 + 17513806502500 = 8236443^2 + 4184950^2 .

It is a cyclic number.

It is not a de Polignac number, because 85352799794749 - 2⁷ = 85352799794621 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85352799794749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85352799794149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42676399897374 + 42676399897375.

It is an arithmetic number, because the mean of its divisors is an integer number (42676399897375).

Almost surely, 2^{85352799794749} is an apocalyptic number.

It is an amenable number.

85352799794749 is a deficient number, since it is larger than the sum of its proper divisors (1).

85352799794749 is an equidigital number, since it uses as much as digits as its factorization.

85352799794749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43208121600, while the sum is 88.

The spelling of 85352799794749 in words is "eighty-five trillion, three hundred fifty-two billion, seven hundred ninety-nine million, seven hundred ninety-four thousand, seven hundred forty-nine".