28350543847 has 2 divisors, whose sum is σ = 28350543848. Its totient is φ = 28350543846.

The previous prime is 28350543841. The next prime is 28350543877. The reversal of 28350543847 is 74834505382.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28350543847 - 2⁷ = 28350543719 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28350543847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28350543841) 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, 14175271923 + 14175271924.

It is an arithmetic number, because the mean of its divisors is an integer number (14175271924).

Almost surely, 2^28350543847 is an apocalyptic number.

28350543847 is a deficient number, since it is larger than the sum of its proper divisors (1).

28350543847 is an equidigital number, since it uses as much as digits as its factorization.

28350543847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3225600, while the sum is 49.

The spelling of 28350543847 in words is "twenty-eight billion, three hundred fifty million, five hundred forty-three thousand, eight hundred forty-seven".