1326727778627 has 2 divisors, whose sum is σ = 1326727778628. Its totient is φ = 1326727778626.

The previous prime is 1326727778567. The next prime is 1326727778659. The reversal of 1326727778627 is 7268777276231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1326727778627 - 2²⁰ = 1326726730051 is a prime.

It is not a weakly prime, because it can be changed into another prime (1326727771627) 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, 663363889313 + 663363889314.

It is an arithmetic number, because the mean of its divisors is an integer number (663363889314).

Almost surely, 2^{1326727778627} is an apocalyptic number.

1326727778627 is a deficient number, since it is larger than the sum of its proper divisors (1).

1326727778627 is an equidigital number, since it uses as much as digits as its factorization.

1326727778627 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116169984, while the sum is 65.

The spelling of 1326727778627 in words is "one trillion, three hundred twenty-six billion, seven hundred twenty-seven million, seven hundred seventy-eight thousand, six hundred twenty-seven".