8185655349 has 6 divisors (see below), whose sum is σ = 11823724406. Its totient is φ = 5457103560.

The previous prime is 8185655347. The next prime is 8185655377. The reversal of 8185655349 is 9435565818.

8185655349 is a `hidden beast` number, since 8 + 1 + 85 + 6 + 553 + 4 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5958759249 + 2226896100 = 77193^2 + 47190^2 .

It is not a de Polignac number, because 8185655349 - 2¹ = 8185655347 is a prime.

It is a super-2 number, since 2×8185655349² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8185655295 and 8185655304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8185655341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 454758622 + ... + 454758639.

Almost surely, 2^8185655349 is an apocalyptic number.

It is an amenable number.

8185655349 is a deficient number, since it is larger than the sum of its proper divisors (3638069057).

8185655349 is a wasteful number, since it uses less digits than its factorization.

8185655349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909517267 (or 909517264 counting only the distinct ones).

The product of its digits is 5184000, while the sum is 54.

The square root of 8185655349 is about 90474.6116266878. The cubic root of 8185655349 is about 2015.3531183772.

The spelling of 8185655349 in words is "eight billion, one hundred eighty-five million, six hundred fifty-five thousand, three hundred forty-nine".