8182728305 has 16 divisors (see below), whose sum is σ = 10161380880. Its totient is φ = 6318267648.

The previous prime is 8182728293. The next prime is 8182728313. The reversal of 8182728305 is 5038272818.

It can be written as a sum of positive squares in 8 ways, for example, as 469848976 + 7712879329 = 21676^2 + 87823^2 .

It is a cyclic number.

It is not a de Polignac number, because 8182728305 - 2⁴ = 8182728289 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 504299 + ... + 520271.

It is an arithmetic number, because the mean of its divisors is an integer number (635086305).

Almost surely, 2^8182728305 is an apocalyptic number.

It is an amenable number.

8182728305 is a deficient number, since it is larger than the sum of its proper divisors (1978652575).

8182728305 is a wasteful number, since it uses less digits than its factorization.

8182728305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19540.

The product of its (nonzero) digits is 215040, while the sum is 44.

The square root of 8182728305 is about 90458.4341286096. The cubic root of 8182728305 is about 2015.1128716582.

The spelling of 8182728305 in words is "eight billion, one hundred eighty-two million, seven hundred twenty-eight thousand, three hundred five".