4855217773 has 6 divisors (see below), whose sum is σ = 5647906446. Its totient is φ = 4161615192.

The previous prime is 4855217767. The next prime is 4855217881. The reversal of 4855217773 is 3777125584.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4065720169 + 789497604 = 63763^2 + 28098^2 .

It is not a de Polignac number, because 4855217773 - 2²¹ = 4853120621 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 99086077 = 4855217773 / (4 + 8 + 5 + 5 + 2 + 1 + 7 + 7 + 7 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4855217753) 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 in 5 ways as a sum of consecutive naturals, for example, 49542990 + ... + 49543087.

It is an arithmetic number, because the mean of its divisors is an integer number (941317741).

Almost surely, 2^4855217773 is an apocalyptic number.

It is an amenable number.

4855217773 is a deficient number, since it is larger than the sum of its proper divisors (792688673).

4855217773 is an equidigital number, since it uses as much as digits as its factorization.

4855217773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99086091 (or 99086084 counting only the distinct ones).

The product of its digits is 1646400, while the sum is 49.

The square root of 4855217773 is about 69679.3927427615. The cubic root of 4855217773 is about 1693.3090834933.

The spelling of 4855217773 in words is "four billion, eight hundred fifty-five million, two hundred seventeen thousand, seven hundred seventy-three".