28458586646309 has 2 divisors, whose sum is σ = 28458586646310. Its totient is φ = 28458586646308.

The previous prime is 28458586646279. The next prime is 28458586646311. The reversal of 28458586646309 is 90364668585482.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26280202522084 + 2178384124225 = 5126422^2 + 1475935^2 .

It is a cyclic number.

It is not a de Polignac number, because 28458586646309 - 2¹⁶ = 28458586580773 is a prime.

It is a super-3 number, since 3×28458586646309³ (a number of 41 digits) contains 333 as substring.

Together with 28458586646311, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28458586646359) 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 as a sum of consecutive naturals, namely, 14229293323154 + 14229293323155.

It is an arithmetic number, because the mean of its divisors is an integer number (14229293323155).

Almost surely, 2^{28458586646309} is an apocalyptic number.

It is an amenable number.

28458586646309 is a deficient number, since it is larger than the sum of its proper divisors (1).

28458586646309 is an equidigital number, since it uses as much as digits as its factorization.

28458586646309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2388787200, while the sum is 74.

The spelling of 28458586646309 in words is "twenty-eight trillion, four hundred fifty-eight billion, five hundred eighty-six million, six hundred forty-six thousand, three hundred nine".