1177795183889 has 2 divisors, whose sum is σ = 1177795183890. Its totient is φ = 1177795183888.

The previous prime is 1177795183883. The next prime is 1177795183937. The reversal of 1177795183889 is 9883815977711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1045741438225 + 132053745664 = 1022615^2 + 363392^2 .

It is a cyclic number.

It is not a de Polignac number, because 1177795183889 - 2²⁰ = 1177794135313 is a prime.

It is not a weakly prime, because it can be changed into another prime (1177795183883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 588897591944 + 588897591945.

It is an arithmetic number, because the mean of its divisors is an integer number (588897591945).

Almost surely, 2^{1177795183889} is an apocalyptic number.

It is an amenable number.

1177795183889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1177795183889 is an equidigital number, since it uses as much as digits as its factorization.

1177795183889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 213373440, while the sum is 74.

The spelling of 1177795183889 in words is "one trillion, one hundred seventy-seven billion, seven hundred ninety-five million, one hundred eighty-three thousand, eight hundred eighty-nine".