230728107365845 has 8 divisors (see below), whose sum is σ = 286421098799160. Its totient is φ = 178217572585920.

The previous prime is 230728107365761. The next prime is 230728107365849. The reversal of 230728107365845 is 548563701827032.

It can be written as a sum of positive squares in 4 ways, for example, as 349320007089 + 230378787358756 = 591033^2 + 15178234^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 230728107365845 - 2²⁷ = 230727973148117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230728107365849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 795614163186 + ... + 795614163475.

It is an arithmetic number, because the mean of its divisors is an integer number (35802637349895).

Almost surely, 2^{230728107365845} is an apocalyptic number.

It is an amenable number.

230728107365845 is a deficient number, since it is larger than the sum of its proper divisors (55692991433315).

230728107365845 is a wasteful number, since it uses less digits than its factorization.

230728107365845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591228326695.

The product of its (nonzero) digits is 67737600, while the sum is 61.

The spelling of 230728107365845 in words is "two hundred thirty trillion, seven hundred twenty-eight billion, one hundred seven million, three hundred sixty-five thousand, eight hundred forty-five".