28358118673 has 2 divisors, whose sum is σ = 28358118674. Its totient is φ = 28358118672.

The previous prime is 28358118647. The next prime is 28358118689. The reversal of 28358118673 is 37681185382.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19804088529 + 8554030144 = 140727^2 + 92488^2 .

It is a cyclic number.

It is not a de Polignac number, because 28358118673 - 2⁹ = 28358118161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28358118673.

It is not a weakly prime, because it can be changed into another prime (28358116673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14179059336 + 14179059337.

It is an arithmetic number, because the mean of its divisors is an integer number (14179059337).

Almost surely, 2^28358118673 is an apocalyptic number.

It is an amenable number.

28358118673 is a deficient number, since it is larger than the sum of its proper divisors (1).

28358118673 is an equidigital number, since it uses as much as digits as its factorization.

28358118673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1935360, while the sum is 52.

The spelling of 28358118673 in words is "twenty-eight billion, three hundred fifty-eight million, one hundred eighteen thousand, six hundred seventy-three".