8449756317 has 12 divisors (see below), whose sum is σ = 12208370460. Its totient is φ = 5631709248.

The previous prime is 8449756291. The next prime is 8449756327. The reversal of 8449756317 is 7136579448.

8449756317 is a `hidden beast` number, since 84 + 497 + 5 + 63 + 17 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7229930841 + 1219825476 = 85029^2 + 34926^2 .

It is not a de Polignac number, because 8449756317 - 2¹² = 8449752221 is a prime.

It is a super-3 number, since 3×8449756317³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8449756327) 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 11 ways as a sum of consecutive naturals, for example, 84592 + ... + 155097.

It is an arithmetic number, because the mean of its divisors is an integer number (1017364205).

Almost surely, 2^8449756317 is an apocalyptic number.

It is an amenable number.

8449756317 is a deficient number, since it is larger than the sum of its proper divisors (3758614143).

8449756317 is a wasteful number, since it uses less digits than its factorization.

8449756317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243612 (or 243609 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The square root of 8449756317 is about 91922.5560839123. The cubic root of 8449756317 is about 2036.7984766543.

The spelling of 8449756317 in words is "eight billion, four hundred forty-nine million, seven hundred fifty-six thousand, three hundred seventeen".