8164931049 has 18 divisors (see below), whose sum is σ = 12963423018. Its totient is φ = 4948442400.

The previous prime is 8164931017. The next prime is 8164931077. The reversal of 8164931049 is 9401394618.

It can be written as a sum of positive squares in only one way, i.e., 7243201449 + 921729600 = 85107^2 + 30360^2 .

It is not a de Polignac number, because 8164931049 - 2⁵ = 8164931017 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8164930995 and 8164931013.

It is not an unprimeable number, because it can be changed into a prime (8164930049) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3747732 + ... + 3749909.

Almost surely, 2^8164931049 is an apocalyptic number.

It is an amenable number.

8164931049 is a deficient number, since it is larger than the sum of its proper divisors (4798491969).

8164931049 is a wasteful number, since it uses less digits than its factorization.

8164931049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7497669 (or 7497655 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 8164931049 is about 90360.0080179279. The cubic root of 8164931049 is about 2013.6508689889.

The spelling of 8164931049 in words is "eight billion, one hundred sixty-four million, nine hundred thirty-one thousand, forty-nine".