1853333516849 has 2 divisors, whose sum is σ = 1853333516850. Its totient is φ = 1853333516848.

The previous prime is 1853333516843. The next prime is 1853333516891. The reversal of 1853333516849 is 9486153333581.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1073347800625 + 779985716224 = 1036025^2 + 883168^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1853333516849 is a prime.

It is not a weakly prime, because it can be changed into another prime (1853333516843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 926666758424 + 926666758425.

It is an arithmetic number, because the mean of its divisors is an integer number (926666758425).

Almost surely, 2^{1853333516849} is an apocalyptic number.

It is an amenable number.

1853333516849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1853333516849 is an equidigital number, since it uses as much as digits as its factorization.

1853333516849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27993600, while the sum is 59.

The spelling of 1853333516849 in words is "one trillion, eight hundred fifty-three billion, three hundred thirty-three million, five hundred sixteen thousand, eight hundred forty-nine".