1926045823109 has 2 divisors, whose sum is σ = 1926045823110. Its totient is φ = 1926045823108.

The previous prime is 1926045822979. The next prime is 1926045823123. The reversal of 1926045823109 is 9013285406291.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1922720570884 + 3325252225 = 1386622^2 + 57665^2 .

It is an emirp because it is prime and its reverse (9013285406291) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1926045823109 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1926045823309) 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, 963022911554 + 963022911555.

It is an arithmetic number, because the mean of its divisors is an integer number (963022911555).

Almost surely, 2^{1926045823109} is an apocalyptic number.

It is an amenable number.

1926045823109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1926045823109 is an equidigital number, since it uses as much as digits as its factorization.

1926045823109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 933120, while the sum is 50.

The spelling of 1926045823109 in words is "one trillion, nine hundred twenty-six billion, forty-five million, eight hundred twenty-three thousand, one hundred nine".