28056083173 has 2 divisors, whose sum is σ = 28056083174. Its totient is φ = 28056083172.

The previous prime is 28056083141. The next prime is 28056083177. The reversal of 28056083173 is 37138065082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25567370404 + 2488712769 = 159898^2 + 49887^2 .

It is a cyclic number.

It is not a de Polignac number, because 28056083173 - 2⁵ = 28056083141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28056083177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14028041586 + 14028041587.

It is an arithmetic number, because the mean of its divisors is an integer number (14028041587).

Almost surely, 2^28056083173 is an apocalyptic number.

It is an amenable number.

28056083173 is a deficient number, since it is larger than the sum of its proper divisors (1).

28056083173 is an equidigital number, since it uses as much as digits as its factorization.

28056083173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 28056083173 in words is "twenty-eight billion, fifty-six million, eighty-three thousand, one hundred seventy-three".