8182728193 has 4 divisors (see below), whose sum is σ = 8538499008. Its totient is φ = 7826957380.

The previous prime is 8182728187. The next prime is 8182728223. The reversal of 8182728193 is 3918272818.

8182728193 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8182728193 - 2⁹ = 8182727681 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8182728143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177885373 + ... + 177885418.

It is an arithmetic number, because the mean of its divisors is an integer number (2134624752).

Almost surely, 2^8182728193 is an apocalyptic number.

It is an amenable number.

8182728193 is a deficient number, since it is larger than the sum of its proper divisors (355770815).

8182728193 is a wasteful number, since it uses less digits than its factorization.

8182728193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355770814.

The product of its digits is 387072, while the sum is 49.

The square root of 8182728193 is about 90458.4335095407. The cubic root of 8182728193 is about 2015.1128624643.

The spelling of 8182728193 in words is "eight billion, one hundred eighty-two million, seven hundred twenty-eight thousand, one hundred ninety-three".