1272691981411 has 2 divisors, whose sum is σ = 1272691981412. Its totient is φ = 1272691981410.

The previous prime is 1272691981357. The next prime is 1272691981493. The reversal of 1272691981411 is 1141891962721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1272691981411 - 2²⁵ = 1272658426979 is a prime.

It is not a weakly prime, because it can be changed into another prime (1272691981711) 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, 636345990705 + 636345990706.

It is an arithmetic number, because the mean of its divisors is an integer number (636345990706).

Almost surely, 2^{1272691981411} is an apocalyptic number.

1272691981411 is a deficient number, since it is larger than the sum of its proper divisors (1).

1272691981411 is an equidigital number, since it uses as much as digits as its factorization.

1272691981411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 52.

The spelling of 1272691981411 in words is "one trillion, two hundred seventy-two billion, six hundred ninety-one million, nine hundred eighty-one thousand, four hundred eleven".