1368766356497 has 2 divisors, whose sum is σ = 1368766356498. Its totient is φ = 1368766356496.

The previous prime is 1368766356457. The next prime is 1368766356499. The reversal of 1368766356497 is 7946536678631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1204936508416 + 163829848081 = 1097696^2 + 404759^2 .

It is a cyclic number.

It is not a de Polignac number, because 1368766356497 - 2¹⁶ = 1368766290961 is a prime.

It is a super-2 number, since 2×1368766356497² (a number of 25 digits) contains 22 as substring.

Together with 1368766356499, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1368766356497.

It is not a weakly prime, because it can be changed into another prime (1368766356499) 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, 684383178248 + 684383178249.

It is an arithmetic number, because the mean of its divisors is an integer number (684383178249).

Almost surely, 2^{1368766356497} is an apocalyptic number.

It is an amenable number.

1368766356497 is a deficient number, since it is larger than the sum of its proper divisors (1).

1368766356497 is an equidigital number, since it uses as much as digits as its factorization.

1368766356497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 823011840, while the sum is 71.

The spelling of 1368766356497 in words is "one trillion, three hundred sixty-eight billion, seven hundred sixty-six million, three hundred fifty-six thousand, four hundred ninety-seven".