1189983674897 has 2 divisors, whose sum is σ = 1189983674898. Its totient is φ = 1189983674896.

The previous prime is 1189983674861. The next prime is 1189983674899. The reversal of 1189983674897 is 7984763899811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 640441676176 + 549541998721 = 800276^2 + 741311^2 .

It is a cyclic number.

It is not a de Polignac number, because 1189983674897 - 2²⁴ = 1189966897681 is a prime.

It is a super-2 number, since 2×1189983674897² (a number of 25 digits) contains 22 as substring.

Together with 1189983674899, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1189983674899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 594991837448 + 594991837449.

It is an arithmetic number, because the mean of its divisors is an integer number (594991837449).

Almost surely, 2^{1189983674897} is an apocalyptic number.

It is an amenable number.

1189983674897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1189983674897 is an equidigital number, since it uses as much as digits as its factorization.

1189983674897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1316818944, while the sum is 80.

The spelling of 1189983674897 in words is "one trillion, one hundred eighty-nine billion, nine hundred eighty-three million, six hundred seventy-four thousand, eight hundred ninety-seven".