28558285169 has 2 divisors, whose sum is σ = 28558285170. Its totient is φ = 28558285168.

The previous prime is 28558285111. The next prime is 28558285211. The reversal of 28558285169 is 96158285582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27733906225 + 824378944 = 166535^2 + 28712^2 .

It is a cyclic number.

It is not a de Polignac number, because 28558285169 - 2¹⁶ = 28558219633 is a prime.

It is a super-2 number, since 2×28558285169² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28558285969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14279142584 + 14279142585.

It is an arithmetic number, because the mean of its divisors is an integer number (14279142585).

Almost surely, 2^28558285169 is an apocalyptic number.

It is an amenable number.

28558285169 is a deficient number, since it is larger than the sum of its proper divisors (1).

28558285169 is an equidigital number, since it uses as much as digits as its factorization.

28558285169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824000, while the sum is 59.

The spelling of 28558285169 in words is "twenty-eight billion, five hundred fifty-eight million, two hundred eighty-five thousand, one hundred sixty-nine".