28069676891 has 2 divisors, whose sum is σ = 28069676892. Its totient is φ = 28069676890.

The previous prime is 28069676827. The next prime is 28069676909. The reversal of 28069676891 is 19867696082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28069676891 - 2⁶ = 28069676827 is a prime.

It is not a weakly prime, because it can be changed into another prime (28069676801) 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, 14034838445 + 14034838446.

It is an arithmetic number, because the mean of its divisors is an integer number (14034838446).

Almost surely, 2^28069676891 is an apocalyptic number.

28069676891 is a deficient number, since it is larger than the sum of its proper divisors (1).

28069676891 is an equidigital number, since it uses as much as digits as its factorization.

28069676891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15676416, while the sum is 62.

The spelling of 28069676891 in words is "twenty-eight billion, sixty-nine million, six hundred seventy-six thousand, eight hundred ninety-one".