1336627687789 has 2 divisors, whose sum is σ = 1336627687790. Its totient is φ = 1336627687788.

The previous prime is 1336627687783. The next prime is 1336627687799. The reversal of 1336627687789 is 9877867266331.

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., 827890713225 + 508736974564 = 909885^2 + 713258^2 .

It is an emirp because it is prime and its reverse (9877867266331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1336627687789 - 2³ = 1336627687781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1336627687781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 668313843894 + 668313843895.

It is an arithmetic number, because the mean of its divisors is an integer number (668313843895).

Almost surely, 2^{1336627687789} is an apocalyptic number.

It is an amenable number.

1336627687789 is a deficient number, since it is larger than the sum of its proper divisors (1).

1336627687789 is an equidigital number, since it uses as much as digits as its factorization.

1336627687789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 768144384, while the sum is 73.

The spelling of 1336627687789 in words is "one trillion, three hundred thirty-six billion, six hundred twenty-seven million, six hundred eighty-seven thousand, seven hundred eighty-nine".