42231613217 has 2 divisors, whose sum is σ = 42231613218. Its totient is φ = 42231613216.

The previous prime is 42231613201. The next prime is 42231613297. The reversal of 42231613217 is 71231613224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40317025681 + 1914587536 = 200791^2 + 43756^2 .

It is a cyclic number.

It is not a de Polignac number, because 42231613217 - 2⁴ = 42231613201 is a prime.

It is not a weakly prime, because it can be changed into another prime (42231613297) 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, 21115806608 + 21115806609.

It is an arithmetic number, because the mean of its divisors is an integer number (21115806609).

Almost surely, 2^42231613217 is an apocalyptic number.

It is an amenable number.

42231613217 is a deficient number, since it is larger than the sum of its proper divisors (1).

42231613217 is an equidigital number, since it uses as much as digits as its factorization.

42231613217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 32.

The spelling of 42231613217 in words is "forty-two billion, two hundred thirty-one million, six hundred thirteen thousand, two hundred seventeen".