42774310717 has 2 divisors, whose sum is σ = 42774310718. Its totient is φ = 42774310716.

The previous prime is 42774310669. The next prime is 42774310741. The reversal of 42774310717 is 71701347724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36754257796 + 6020052921 = 191714^2 + 77589^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42774310717 is a prime.

It is a super-2 number, since 2×42774310717² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42774314717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21387155358 + 21387155359.

It is an arithmetic number, because the mean of its divisors is an integer number (21387155359).

Almost surely, 2^42774310717 is an apocalyptic number.

It is an amenable number.

42774310717 is a deficient number, since it is larger than the sum of its proper divisors (1).

42774310717 is an equidigital number, since it uses as much as digits as its factorization.

42774310717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 230496, while the sum is 43.

The spelling of 42774310717 in words is "forty-two billion, seven hundred seventy-four million, three hundred ten thousand, seven hundred seventeen".