1268176569089 has 2 divisors, whose sum is σ = 1268176569090. Its totient is φ = 1268176569088.

The previous prime is 1268176569043. The next prime is 1268176569119. The reversal of 1268176569089 is 9809656718621.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1077236410000 + 190940159089 = 1037900^2 + 436967^2 .

It is a cyclic number.

It is not a de Polignac number, because 1268176569089 - 2⁸ = 1268176568833 is a prime.

It is not a weakly prime, because it can be changed into another prime (1268176563089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634088284544 + 634088284545.

It is an arithmetic number, because the mean of its divisors is an integer number (634088284545).

Almost surely, 2^{1268176569089} is an apocalyptic number.

It is an amenable number.

1268176569089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1268176569089 is an equidigital number, since it uses as much as digits as its factorization.

1268176569089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78382080, while the sum is 68.

The spelling of 1268176569089 in words is "one trillion, two hundred sixty-eight billion, one hundred seventy-six million, five hundred sixty-nine thousand, eighty-nine".