1319849037361 has 2 divisors, whose sum is σ = 1319849037362. Its totient is φ = 1319849037360.

The previous prime is 1319849037329. The next prime is 1319849037391. The reversal of 1319849037361 is 1637309489131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1089299253025 + 230549784336 = 1043695^2 + 480156^2 .

It is a cyclic number.

It is not a de Polignac number, because 1319849037361 - 2⁵ = 1319849037329 is a prime.

It is not a weakly prime, because it can be changed into another prime (1319849037391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 659924518680 + 659924518681.

It is an arithmetic number, because the mean of its divisors is an integer number (659924518681).

Almost surely, 2^{1319849037361} is an apocalyptic number.

It is an amenable number.

1319849037361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1319849037361 is an equidigital number, since it uses as much as digits as its factorization.

1319849037361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2939328, while the sum is 55.

The spelling of 1319849037361 in words is "one trillion, three hundred nineteen billion, eight hundred forty-nine million, thirty-seven thousand, three hundred sixty-one".