28700945227 has 2 divisors, whose sum is σ = 28700945228. Its totient is φ = 28700945226.

The previous prime is 28700945213. The next prime is 28700945261. The reversal of 28700945227 is 72254900782.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28700945227 - 2¹⁹ = 28700420939 is a prime.

It is not a weakly prime, because it can be changed into another prime (28700945267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14350472613 + 14350472614.

It is an arithmetic number, because the mean of its divisors is an integer number (14350472614).

Almost surely, 2^28700945227 is an apocalyptic number.

28700945227 is a deficient number, since it is larger than the sum of its proper divisors (1).

28700945227 is an equidigital number, since it uses as much as digits as its factorization.

28700945227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 564480, while the sum is 46.

The spelling of 28700945227 in words is "twenty-eight billion, seven hundred million, nine hundred forty-five thousand, two hundred twenty-seven".