28275830237 has 2 divisors, whose sum is σ = 28275830238. Its totient is φ = 28275830236.

The previous prime is 28275830203. The next prime is 28275830257. The reversal of 28275830237 is 73203857282.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27726912196 + 548918041 = 166514^2 + 23429^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28275830237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28275830191 and 28275830200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28275830257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14137915118 + 14137915119.

It is an arithmetic number, because the mean of its divisors is an integer number (14137915119).

Almost surely, 2^28275830237 is an apocalyptic number.

It is an amenable number.

28275830237 is a deficient number, since it is larger than the sum of its proper divisors (1).

28275830237 is an equidigital number, since it uses as much as digits as its factorization.

28275830237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1128960, while the sum is 47.

The spelling of 28275830237 in words is "twenty-eight billion, two hundred seventy-five million, eight hundred thirty thousand, two hundred thirty-seven".