8781085853 has 2 divisors, whose sum is σ = 8781085854. Its totient is φ = 8781085852.

The previous prime is 8781085813. The next prime is 8781085879. The reversal of 8781085853 is 3585801878.

It is a happy number.

8781085853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6077293849 + 2703792004 = 77957^2 + 51998^2 .

It is a cyclic number.

It is not a de Polignac number, because 8781085853 - 2⁸ = 8781085597 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8781085795 and 8781085804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8781085813) 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, 4390542926 + 4390542927.

It is an arithmetic number, because the mean of its divisors is an integer number (4390542927).

Almost surely, 2^8781085853 is an apocalyptic number.

It is an amenable number.

8781085853 is a deficient number, since it is larger than the sum of its proper divisors (1).

8781085853 is an equidigital number, since it uses as much as digits as its factorization.

8781085853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2150400, while the sum is 53.

The square root of 8781085853 is about 93707.4482258481. The cubic root of 8781085853 is about 2063.0800261440.

The spelling of 8781085853 in words is "eight billion, seven hundred eighty-one million, eighty-five thousand, eight hundred fifty-three".