1820009092813 has 2 divisors, whose sum is σ = 1820009092814. Its totient is φ = 1820009092812.

The previous prime is 1820009092789. The next prime is 1820009092823. The reversal of 1820009092813 is 3182909000281.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1701701987049 + 118307105764 = 1304493^2 + 343958^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1820009092813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1820009092813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1820009092823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 910004546406 + 910004546407.

It is an arithmetic number, because the mean of its divisors is an integer number (910004546407).

Almost surely, 2^{1820009092813} is an apocalyptic number.

It is an amenable number.

1820009092813 is a deficient number, since it is larger than the sum of its proper divisors (1).

1820009092813 is an equidigital number, since it uses as much as digits as its factorization.

1820009092813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 43.

The spelling of 1820009092813 in words is "one trillion, eight hundred twenty billion, nine million, ninety-two thousand, eight hundred thirteen".