7816491446417 has 2 divisors, whose sum is σ = 7816491446418. Its totient is φ = 7816491446416.

The previous prime is 7816491446341. The next prime is 7816491446431. The reversal of 7816491446417 is 7146441946187.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7632848343121 + 183643103296 = 2762761^2 + 428536^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7816491446417 is a prime.

It is a super-2 number, since 2×7816491446417² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7816491446417.

It is not a weakly prime, because it can be changed into another prime (7816491446437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3908245723208 + 3908245723209.

It is an arithmetic number, because the mean of its divisors is an integer number (3908245723209).

Almost surely, 2^{7816491446417} is an apocalyptic number.

It is an amenable number.

7816491446417 is a deficient number, since it is larger than the sum of its proper divisors (1).

7816491446417 is an equidigital number, since it uses as much as digits as its factorization.

7816491446417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32514048, while the sum is 62.

The spelling of 7816491446417 in words is "seven trillion, eight hundred sixteen billion, four hundred ninety-one million, four hundred forty-six thousand, four hundred seventeen".