2081917417 has 2 divisors, whose sum is σ = 2081917418. Its totient is φ = 2081917416.

The previous prime is 2081917403. The next prime is 2081917501. The reversal of 2081917417 is 7147191802.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1438229776 + 643687641 = 37924^2 + 25371^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2081917417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2081917417.

It is not a weakly prime, because it can be changed into another prime (2081911417) 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, 1040958708 + 1040958709.

It is an arithmetic number, because the mean of its divisors is an integer number (1040958709).

Almost surely, 2^2081917417 is an apocalyptic number.

It is an amenable number.

2081917417 is a deficient number, since it is larger than the sum of its proper divisors (1).

2081917417 is an equidigital number, since it uses as much as digits as its factorization.

2081917417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 40.

The square root of 2081917417 is about 45628.0332361587. The cubic root of 2081917417 is about 1276.8929804041.

The spelling of 2081917417 in words is "two billion, eighty-one million, nine hundred seventeen thousand, four hundred seventeen".