42775771417 has 2 divisors, whose sum is σ = 42775771418. Its totient is φ = 42775771416.

The previous prime is 42775771411. The next prime is 42775771453. The reversal of 42775771417 is 71417757724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25071872281 + 17703899136 = 158341^2 + 133056^2 .

It is a cyclic number.

It is not a de Polignac number, because 42775771417 - 2¹⁹ = 42775247129 is a prime.

It is not a weakly prime, because it can be changed into another prime (42775771411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21387885708 + 21387885709.

It is an arithmetic number, because the mean of its divisors is an integer number (21387885709).

Almost surely, 2^42775771417 is an apocalyptic number.

It is an amenable number.

42775771417 is a deficient number, since it is larger than the sum of its proper divisors (1).

42775771417 is an equidigital number, since it uses as much as digits as its factorization.

42775771417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2689120, while the sum is 52.

The spelling of 42775771417 in words is "forty-two billion, seven hundred seventy-five million, seven hundred seventy-one thousand, four hundred seventeen".