28300006321 has 2 divisors, whose sum is σ = 28300006322. Its totient is φ = 28300006320.

The previous prime is 28300006289. The next prime is 28300006331. The reversal of 28300006321 is 12360000382.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26143332721 + 2156673600 = 161689^2 + 46440^2 .

It is a cyclic number.

It is not a de Polignac number, because 28300006321 - 2⁵ = 28300006289 is a prime.

It is not a weakly prime, because it can be changed into another prime (28300006331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14150003160 + 14150003161.

It is an arithmetic number, because the mean of its divisors is an integer number (14150003161).

Almost surely, 2^28300006321 is an apocalyptic number.

It is an amenable number.

28300006321 is a deficient number, since it is larger than the sum of its proper divisors (1).

28300006321 is an equidigital number, since it uses as much as digits as its factorization.

28300006321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

The spelling of 28300006321 in words is "twenty-eight billion, three hundred million, six thousand, three hundred twenty-one".