28296668671 has 2 divisors, whose sum is σ = 28296668672. Its totient is φ = 28296668670.

The previous prime is 28296668651. The next prime is 28296668711. The reversal of 28296668671 is 17686669282.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28296668671 - 2⁹ = 28296668159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28296668611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14148334335 + 14148334336.

It is an arithmetic number, because the mean of its divisors is an integer number (14148334336).

Almost surely, 2^28296668671 is an apocalyptic number.

28296668671 is a deficient number, since it is larger than the sum of its proper divisors (1).

28296668671 is an equidigital number, since it uses as much as digits as its factorization.

28296668671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20901888, while the sum is 61.

The spelling of 28296668671 in words is "twenty-eight billion, two hundred ninety-six million, six hundred sixty-eight thousand, six hundred seventy-one".