28110582569 has 2 divisors, whose sum is σ = 28110582570. Its totient is φ = 28110582568.

The previous prime is 28110582559. The next prime is 28110582623. The reversal of 28110582569 is 96528501182.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20245021225 + 7865561344 = 142285^2 + 88688^2 .

It is a cyclic number.

It is not a de Polignac number, because 28110582569 - 2⁴ = 28110582553 is a prime.

It is a super-2 number, since 2×28110582569² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28110582559) 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, 14055291284 + 14055291285.

It is an arithmetic number, because the mean of its divisors is an integer number (14055291285).

Almost surely, 2^28110582569 is an apocalyptic number.

It is an amenable number.

28110582569 is a deficient number, since it is larger than the sum of its proper divisors (1).

28110582569 is an equidigital number, since it uses as much as digits as its factorization.

28110582569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345600, while the sum is 47.

The spelling of 28110582569 in words is "twenty-eight billion, one hundred ten million, five hundred eighty-two thousand, five hundred sixty-nine".