6171828849 has 12 divisors (see below), whose sum is σ = 8915548356. Its totient is φ = 4114236672.

The previous prime is 6171828841. The next prime is 6171828863. The reversal of 6171828849 is 9488281716.

6171828849 is a `hidden beast` number, since 617 + 18 + 2 + 8 + 8 + 4 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3526578225 + 2645250624 = 59385^2 + 51432^2 .

It is not a de Polignac number, because 6171828849 - 2³ = 6171828841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6171828795 and 6171828804.

It is not an unprimeable number, because it can be changed into a prime (6171828841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 198189 + ... + 227205.

It is an arithmetic number, because the mean of its divisors is an integer number (742962363).

Almost surely, 2^6171828849 is an apocalyptic number.

It is an amenable number.

6171828849 is a deficient number, since it is larger than the sum of its proper divisors (2743719507).

6171828849 is a wasteful number, since it uses less digits than its factorization.

6171828849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52656 (or 52653 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 54.

The square root of 6171828849 is about 78560.9880856905. The cubic root of 6171828849 is about 1834.3039082057.

The spelling of 6171828849 in words is "six billion, one hundred seventy-one million, eight hundred twenty-eight thousand, eight hundred forty-nine".