42227028497 has 2 divisors, whose sum is σ = 42227028498. Its totient is φ = 42227028496.

The previous prime is 42227028451. The next prime is 42227028521. The reversal of 42227028497 is 79482072224.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27519160321 + 14707868176 = 165889^2 + 121276^2 .

It is a cyclic number.

It is not a de Polignac number, because 42227028497 - 2¹⁰ = 42227027473 is a prime.

It is not a weakly prime, because it can be changed into another prime (42227028397) 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, 21113514248 + 21113514249.

It is an arithmetic number, because the mean of its divisors is an integer number (21113514249).

Almost surely, 2^42227028497 is an apocalyptic number.

It is an amenable number.

42227028497 is a deficient number, since it is larger than the sum of its proper divisors (1).

42227028497 is an equidigital number, since it uses as much as digits as its factorization.

42227028497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 903168, while the sum is 47.

The spelling of 42227028497 in words is "forty-two billion, two hundred twenty-seven million, twenty-eight thousand, four hundred ninety-seven".