28866872327 has 2 divisors, whose sum is σ = 28866872328. Its totient is φ = 28866872326.

The previous prime is 28866872303. The next prime is 28866872329. The reversal of 28866872327 is 72327866882.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28866872327 - 2⁶ = 28866872263 is a prime.

Together with 28866872329, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28866872329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14433436163 + 14433436164.

It is an arithmetic number, because the mean of its divisors is an integer number (14433436164).

Almost surely, 2^28866872327 is an apocalyptic number.

28866872327 is a deficient number, since it is larger than the sum of its proper divisors (1).

28866872327 is an equidigital number, since it uses as much as digits as its factorization.

28866872327 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21676032, while the sum is 59.

The spelling of 28866872327 in words is "twenty-eight billion, eight hundred sixty-six million, eight hundred seventy-two thousand, three hundred twenty-seven".