227970916309 has 2 divisors, whose sum is σ = 227970916310. Its totient is φ = 227970916308.

The previous prime is 227970916297. The next prime is 227970916409. The reversal of 227970916309 is 903619079722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 152219363409 + 75751552900 = 390153^2 + 275230^2 .

It is a cyclic number.

It is not a de Polignac number, because 227970916309 - 2⁹ = 227970915797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 227970916309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (227970916009) 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, 113985458154 + 113985458155.

It is an arithmetic number, because the mean of its divisors is an integer number (113985458155).

Almost surely, 2^227970916309 is an apocalyptic number.

It is an amenable number.

227970916309 is a deficient number, since it is larger than the sum of its proper divisors (1).

227970916309 is an equidigital number, since it uses as much as digits as its factorization.

227970916309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2571912, while the sum is 55.

The spelling of 227970916309 in words is "two hundred twenty-seven billion, nine hundred seventy million, nine hundred sixteen thousand, three hundred nine".