28558671497 has 2 divisors, whose sum is σ = 28558671498. Its totient is φ = 28558671496.

The previous prime is 28558671451. The next prime is 28558671511. The reversal of 28558671497 is 79417685582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27937116736 + 621554761 = 167144^2 + 24931^2 .

It is a cyclic number.

It is not a de Polignac number, because 28558671497 - 2¹⁸ = 28558409353 is a prime.

It is not a weakly prime, because it can be changed into another prime (28558601497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14279335748 + 14279335749.

It is an arithmetic number, because the mean of its divisors is an integer number (14279335749).

Almost surely, 2^28558671497 is an apocalyptic number.

It is an amenable number.

28558671497 is a deficient number, since it is larger than the sum of its proper divisors (1).

28558671497 is an equidigital number, since it uses as much as digits as its factorization.

28558671497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 33868800, while the sum is 62.

The spelling of 28558671497 in words is "twenty-eight billion, five hundred fifty-eight million, six hundred seventy-one thousand, four hundred ninety-seven".