1126694518217 has 2 divisors, whose sum is σ = 1126694518218. Its totient is φ = 1126694518216.

The previous prime is 1126694518199. The next prime is 1126694518283. The reversal of 1126694518217 is 7128154966211.

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., 643306660096 + 483387858121 = 802064^2 + 695261^2 .

It is a cyclic number.

It is not a de Polignac number, because 1126694518217 - 2¹⁸ = 1126694256073 is a prime.

It is not a weakly prime, because it can be changed into another prime (1126694518297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563347259108 + 563347259109.

It is an arithmetic number, because the mean of its divisors is an integer number (563347259109).

Almost surely, 2^{1126694518217} is an apocalyptic number.

It is an amenable number.

1126694518217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1126694518217 is an equidigital number, since it uses as much as digits as its factorization.

1126694518217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 53.

The spelling of 1126694518217 in words is "one trillion, one hundred twenty-six billion, six hundred ninety-four million, five hundred eighteen thousand, two hundred seventeen".