28247861071 has 2 divisors, whose sum is σ = 28247861072. Its totient is φ = 28247861070.

The previous prime is 28247861069. The next prime is 28247861099. The reversal of 28247861071 is 17016874282.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28247861071 - 2¹ = 28247861069 is a prime.

Together with 28247861069, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28247861671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14123930535 + 14123930536.

It is an arithmetic number, because the mean of its divisors is an integer number (14123930536).

Almost surely, 2^28247861071 is an apocalyptic number.

28247861071 is a deficient number, since it is larger than the sum of its proper divisors (1).

28247861071 is an equidigital number, since it uses as much as digits as its factorization.

28247861071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 301056, while the sum is 46.

The spelling of 28247861071 in words is "twenty-eight billion, two hundred forty-seven million, eight hundred sixty-one thousand, seventy-one".