28023227137 has 2 divisors, whose sum is σ = 28023227138. Its totient is φ = 28023227136.

The previous prime is 28023227123. The next prime is 28023227149. The reversal of 28023227137 is 73172232082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24228790336 + 3794436801 = 155656^2 + 61599^2 .

It is a cyclic number.

It is not a de Polignac number, because 28023227137 - 2¹¹ = 28023225089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28023227096 and 28023227105.

It is not a weakly prime, because it can be changed into another prime (28023227537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14011613568 + 14011613569.

It is an arithmetic number, because the mean of its divisors is an integer number (14011613569).

Almost surely, 2^28023227137 is an apocalyptic number.

It is an amenable number.

28023227137 is a deficient number, since it is larger than the sum of its proper divisors (1).

28023227137 is an equidigital number, since it uses as much as digits as its factorization.

28023227137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 37.

The spelling of 28023227137 in words is "twenty-eight billion, twenty-three million, two hundred twenty-seven thousand, one hundred thirty-seven".