28567123241 has 2 divisors, whose sum is σ = 28567123242. Its totient is φ = 28567123240.

The previous prime is 28567123199. The next prime is 28567123267. The reversal of 28567123241 is 14232176582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28359907216 + 207216025 = 168404^2 + 14395^2 .

It is a cyclic number.

It is not a de Polignac number, because 28567123241 - 2²² = 28562928937 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (28567125241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14283561620 + 14283561621.

It is an arithmetic number, because the mean of its divisors is an integer number (14283561621).

Almost surely, 2^28567123241 is an apocalyptic number.

It is an amenable number.

28567123241 is a deficient number, since it is larger than the sum of its proper divisors (1).

28567123241 is an equidigital number, since it uses as much as digits as its factorization.

28567123241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161280, while the sum is 41.

The spelling of 28567123241 in words is "twenty-eight billion, five hundred sixty-seven million, one hundred twenty-three thousand, two hundred forty-one".