1189308580849 has 2 divisors, whose sum is σ = 1189308580850. Its totient is φ = 1189308580848.

The previous prime is 1189308580843. The next prime is 1189308580871. The reversal of 1189308580849 is 9480858039811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 621033835249 + 568274745600 = 788057^2 + 753840^2 .

It is a cyclic number.

It is not a de Polignac number, because 1189308580849 - 2¹⁹ = 1189308056561 is a prime.

It is not a weakly prime, because it can be changed into another prime (1189308580843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 594654290424 + 594654290425.

It is an arithmetic number, because the mean of its divisors is an integer number (594654290425).

Almost surely, 2^{1189308580849} is an apocalyptic number.

It is an amenable number.

1189308580849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1189308580849 is an equidigital number, since it uses as much as digits as its factorization.

1189308580849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19906560, while the sum is 64.

The spelling of 1189308580849 in words is "one trillion, one hundred eighty-nine billion, three hundred eight million, five hundred eighty thousand, eight hundred forty-nine".