27800766223 has 2 divisors, whose sum is σ = 27800766224. Its totient is φ = 27800766222.

The previous prime is 27800766089. The next prime is 27800766263. The reversal of 27800766223 is 32266700872.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27800766223 - 2²¹ = 27798669071 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27800766223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27800766263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13900383111 + 13900383112.

It is an arithmetic number, because the mean of its divisors is an integer number (13900383112).

Almost surely, 2^27800766223 is an apocalyptic number.

27800766223 is a deficient number, since it is larger than the sum of its proper divisors (1).

27800766223 is an equidigital number, since it uses as much as digits as its factorization.

27800766223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 338688, while the sum is 43.

The spelling of 27800766223 in words is "twenty-seven billion, eight hundred million, seven hundred sixty-six thousand, two hundred twenty-three".