1194888132869 has 2 divisors, whose sum is σ = 1194888132870. Its totient is φ = 1194888132868.

The previous prime is 1194888132839. The next prime is 1194888132913. The reversal of 1194888132869 is 9682318884911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1014173871844 + 180714261025 = 1007062^2 + 425105^2 .

It is a cyclic number.

It is not a de Polignac number, because 1194888132869 - 2⁴⁰ = 95376505093 is a prime.

It is a super-2 number, since 2×1194888132869² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1194888132799 and 1194888132808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1194888132839) 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, 597444066434 + 597444066435.

It is an arithmetic number, because the mean of its divisors is an integer number (597444066435).

Almost surely, 2^{1194888132869} is an apocalyptic number.

It is an amenable number.

1194888132869 is a deficient number, since it is larger than the sum of its proper divisors (1).

1194888132869 is an equidigital number, since it uses as much as digits as its factorization.

1194888132869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47775744, while the sum is 68.

The spelling of 1194888132869 in words is "one trillion, one hundred ninety-four billion, eight hundred eighty-eight million, one hundred thirty-two thousand, eight hundred sixty-nine".