28708089167 has 2 divisors, whose sum is σ = 28708089168. Its totient is φ = 28708089166.

The previous prime is 28708089119. The next prime is 28708089229. The reversal of 28708089167 is 76198080782.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28708089167 - 2⁸ = 28708088911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28708089967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14354044583 + 14354044584.

It is an arithmetic number, because the mean of its divisors is an integer number (14354044584).

Almost surely, 2^28708089167 is an apocalyptic number.

28708089167 is a deficient number, since it is larger than the sum of its proper divisors (1).

28708089167 is an equidigital number, since it uses as much as digits as its factorization.

28708089167 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2709504, while the sum is 56.

The spelling of 28708089167 in words is "twenty-eight billion, seven hundred eight million, eighty-nine thousand, one hundred sixty-seven".