8168591050 has 12 divisors (see below), whose sum is σ = 15193579446. Its totient is φ = 3267436400.

The previous prime is 8168591033. The next prime is 8168591051. The reversal of 8168591050 is 501958618.

It can be written as a sum of positive squares in 3 ways, for example, as 3967866081 + 4200724969 = 62991^2 + 64813^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8168590988 and 8168591006.

It is not an unprimeable number, because it can be changed into a prime (8168591051) 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, 81685861 + ... + 81685960.

Almost surely, 2^8168591050 is an apocalyptic number.

8168591050 is a deficient number, since it is larger than the sum of its proper divisors (7024988396).

8168591050 is a wasteful number, since it uses less digits than its factorization.

8168591050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163371833 (or 163371828 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 43.

The square root of 8168591050 is about 90380.2580766397. The cubic root of 8168591050 is about 2013.9517028522.

The spelling of 8168591050 in words is "eight billion, one hundred sixty-eight million, five hundred ninety-one thousand, fifty".