1171788196841 has 2 divisors, whose sum is σ = 1171788196842. Its totient is φ = 1171788196840.

The previous prime is 1171788196759. The next prime is 1171788196933. The reversal of 1171788196841 is 1486918871711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1169209690000 + 2578506841 = 1081300^2 + 50779^2 .

It is a cyclic number.

It is not a de Polignac number, because 1171788196841 - 2²² = 1171784002537 is a prime.

It is not a weakly prime, because it can be changed into another prime (1171788096841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 585894098420 + 585894098421.

It is an arithmetic number, because the mean of its divisors is an integer number (585894098421).

Almost surely, 2^{1171788196841} is an apocalyptic number.

It is an amenable number.

1171788196841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1171788196841 is an equidigital number, since it uses as much as digits as its factorization.

1171788196841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5419008, while the sum is 62.

The spelling of 1171788196841 in words is "one trillion, one hundred seventy-one billion, seven hundred eighty-eight million, one hundred ninety-six thousand, eight hundred forty-one".