1368766356457 has 2 divisors, whose sum is σ = 1368766356458. Its totient is φ = 1368766356456.

The previous prime is 1368766356449. The next prime is 1368766356497. The reversal of 1368766356457 is 7546536678631.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1061433607081 + 307332749376 = 1030259^2 + 554376^2 .

It is a cyclic number.

It is not a de Polignac number, because 1368766356457 - 2³ = 1368766356449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1368766356392 and 1368766356401.

It is not a weakly prime, because it can be changed into another prime (1368766356497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 684383178228 + 684383178229.

It is an arithmetic number, because the mean of its divisors is an integer number (684383178229).

Almost surely, 2^{1368766356457} is an apocalyptic number.

It is an amenable number.

1368766356457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1368766356457 is an equidigital number, since it uses as much as digits as its factorization.

1368766356457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 457228800, while the sum is 67.

The spelling of 1368766356457 in words is "one trillion, three hundred sixty-eight billion, seven hundred sixty-six million, three hundred fifty-six thousand, four hundred fifty-seven".