1368789817009 has 2 divisors, whose sum is σ = 1368789817010. Its totient is φ = 1368789817008.

The previous prime is 1368789816959. The next prime is 1368789817033. The reversal of 1368789817009 is 9007189878631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1313251824784 + 55537992225 = 1145972^2 + 235665^2 .

It is a cyclic number.

It is not a de Polignac number, because 1368789817009 - 2¹⁹ = 1368789292721 is a prime.

It is not a weakly prime, because it can be changed into another prime (1368789817909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 684394908504 + 684394908505.

It is an arithmetic number, because the mean of its divisors is an integer number (684394908505).

Almost surely, 2^{1368789817009} is an apocalyptic number.

It is an amenable number.

1368789817009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1368789817009 is an equidigital number, since it uses as much as digits as its factorization.

1368789817009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36578304, while the sum is 67.

The spelling of 1368789817009 in words is "one trillion, three hundred sixty-eight billion, seven hundred eighty-nine million, eight hundred seventeen thousand, nine".