227368821497 has 2 divisors, whose sum is σ = 227368821498. Its totient is φ = 227368821496.

The previous prime is 227368821461. The next prime is 227368821509. The reversal of 227368821497 is 794128863722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 224438115001 + 2930706496 = 473749^2 + 54136^2 .

It is a cyclic number.

It is not a de Polignac number, because 227368821497 - 2²⁸ = 227100386041 is a prime.

It is not a weakly prime, because it can be changed into another prime (227368821437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113684410748 + 113684410749.

It is an arithmetic number, because the mean of its divisors is an integer number (113684410749).

Almost surely, 2^227368821497 is an apocalyptic number.

It is an amenable number.

227368821497 is a deficient number, since it is larger than the sum of its proper divisors (1).

227368821497 is an equidigital number, since it uses as much as digits as its factorization.

227368821497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16257024, while the sum is 59.

The spelling of 227368821497 in words is "two hundred twenty-seven billion, three hundred sixty-eight million, eight hundred twenty-one thousand, four hundred ninety-seven".