1839781344073 has 2 divisors, whose sum is σ = 1839781344074. Its totient is φ = 1839781344072.

The previous prime is 1839781344019. The next prime is 1839781344133. The reversal of 1839781344073 is 3704431879381.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1790209212169 + 49572131904 = 1337987^2 + 222648^2 .

It is an emirp because it is prime and its reverse (3704431879381) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1839781344073 - 2¹³ = 1839781335881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1839781343999 and 1839781344017.

It is not a weakly prime, because it can be changed into another prime (1839781344013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 919890672036 + 919890672037.

It is an arithmetic number, because the mean of its divisors is an integer number (919890672037).

Almost surely, 2^{1839781344073} is an apocalyptic number.

It is an amenable number.

1839781344073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1839781344073 is an equidigital number, since it uses as much as digits as its factorization.

1839781344073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12192768, while the sum is 58.

The spelling of 1839781344073 in words is "one trillion, eight hundred thirty-nine billion, seven hundred eighty-one million, three hundred forty-four thousand, seventy-three".