3668195879617 has 2 divisors, whose sum is σ = 3668195879618. Its totient is φ = 3668195879616.

The previous prime is 3668195879609. The next prime is 3668195879651. The reversal of 3668195879617 is 7169785918663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3629619384336 + 38576495281 = 1905156^2 + 196409^2 .

It is a cyclic number.

It is not a de Polignac number, because 3668195879617 - 2³ = 3668195879609 is a prime.

It is a super-3 number, since 3×3668195879617³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (3668195874617) 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, 1834097939808 + 1834097939809.

It is an arithmetic number, because the mean of its divisors is an integer number (1834097939809).

Almost surely, 2^{3668195879617} is an apocalyptic number.

It is an amenable number.

3668195879617 is a deficient number, since it is larger than the sum of its proper divisors (1).

3668195879617 is an equidigital number, since it uses as much as digits as its factorization.

3668195879617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 823011840, while the sum is 76.

The spelling of 3668195879617 in words is "three trillion, six hundred sixty-eight billion, one hundred ninety-five million, eight hundred seventy-nine thousand, six hundred seventeen".