28282876729 has 2 divisors, whose sum is σ = 28282876730. Its totient is φ = 28282876728.

The previous prime is 28282876723. The next prime is 28282876751. The reversal of 28282876729 is 92767828282.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27133666729 + 1149210000 = 164723^2 + 33900^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28282876729 is a prime.

It is a super-2 number, since 2×28282876729² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28282876723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14141438364 + 14141438365.

It is an arithmetic number, because the mean of its divisors is an integer number (14141438365).

Almost surely, 2^28282876729 is an apocalyptic number.

It is an amenable number.

28282876729 is a deficient number, since it is larger than the sum of its proper divisors (1).

28282876729 is an equidigital number, since it uses as much as digits as its factorization.

28282876729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21676032, while the sum is 61.

The spelling of 28282876729 in words is "twenty-eight billion, two hundred eighty-two million, eight hundred seventy-six thousand, seven hundred twenty-nine".