28534356920227 has 2 divisors, whose sum is σ = 28534356920228. Its totient is φ = 28534356920226.

The previous prime is 28534356920089. The next prime is 28534356920287. The reversal of 28534356920227 is 72202965343582.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28534356920227 is a prime.

It is not a weakly prime, because it can be changed into another prime (28534356920287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14267178460113 + 14267178460114.

It is an arithmetic number, because the mean of its divisors is an integer number (14267178460114).

Almost surely, 2^{28534356920227} is an apocalyptic number.

28534356920227 is a deficient number, since it is larger than the sum of its proper divisors (1).

28534356920227 is an equidigital number, since it uses as much as digits as its factorization.

28534356920227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43545600, while the sum is 58.

The spelling of 28534356920227 in words is "twenty-eight trillion, five hundred thirty-four billion, three hundred fifty-six million, nine hundred twenty thousand, two hundred twenty-seven".