3668813158397 has 2 divisors, whose sum is σ = 3668813158398. Its totient is φ = 3668813158396.

The previous prime is 3668813158343. The next prime is 3668813158421. The reversal of 3668813158397 is 7938513188663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3645613603801 + 23199554596 = 1909349^2 + 152314^2 .

It is a cyclic number.

It is not a de Polignac number, because 3668813158397 - 2¹² = 3668813154301 is a prime.

It is a super-2 number, since 2×3668813158397² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3668813178397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1834406579198 + 1834406579199.

It is an arithmetic number, because the mean of its divisors is an integer number (1834406579199).

Almost surely, 2^{3668813158397} is an apocalyptic number.

It is an amenable number.

3668813158397 is a deficient number, since it is larger than the sum of its proper divisors (1).

3668813158397 is an equidigital number, since it uses as much as digits as its factorization.

3668813158397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 156764160, while the sum is 68.

The spelling of 3668813158397 in words is "three trillion, six hundred sixty-eight billion, eight hundred thirteen million, one hundred fifty-eight thousand, three hundred ninety-seven".