912442365217 has 2 divisors, whose sum is σ = 912442365218. Its totient is φ = 912442365216.

The previous prime is 912442365193. The next prime is 912442365251. The reversal of 912442365217 is 712563244219.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 910986255936 + 1456109281 = 954456^2 + 38159^2 .

It is a cyclic number.

It is not a de Polignac number, because 912442365217 - 2²³ = 912433976609 is a prime.

It is a super-2 number, since 2×912442365217² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (912442305217) 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, 456221182608 + 456221182609.

It is an arithmetic number, because the mean of its divisors is an integer number (456221182609).

Almost surely, 2^912442365217 is an apocalyptic number.

It is an amenable number.

912442365217 is a deficient number, since it is larger than the sum of its proper divisors (1).

912442365217 is an equidigital number, since it uses as much as digits as its factorization.

912442365217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 46.

The spelling of 912442365217 in words is "nine hundred twelve billion, four hundred forty-two million, three hundred sixty-five thousand, two hundred seventeen".