8166975789 has 64 divisors (see below), whose sum is σ = 13370255360. Its totient is φ = 4330609920.

The previous prime is 8166975757. The next prime is 8166975793. The reversal of 8166975789 is 9875796618.

It is not a de Polignac number, because 8166975789 - 2⁵ = 8166975757 is a prime.

It is a super-2 number, since 2×8166975789² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8166975749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7471527 + ... + 7472619.

It is an arithmetic number, because the mean of its divisors is an integer number (208910240).

Almost surely, 2^8166975789 is an apocalyptic number.

It is an amenable number.

8166975789 is a deficient number, since it is larger than the sum of its proper divisors (5203279571).

8166975789 is a wasteful number, since it uses less digits than its factorization.

8166975789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490.

The product of its digits is 45722880, while the sum is 66.

The square root of 8166975789 is about 90371.3217176777. The cubic root of 8166975789 is about 2013.8189475187.

The spelling of 8166975789 in words is "eight billion, one hundred sixty-six million, nine hundred seventy-five thousand, seven hundred eighty-nine".