2081853811903 has 2 divisors, whose sum is σ = 2081853811904. Its totient is φ = 2081853811902.

The previous prime is 2081853811897. The next prime is 2081853811927. The reversal of 2081853811903 is 3091183581802.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2081853811903 is a prime.

It is a super-3 number, since 3×2081853811903³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2081853812903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1040926905951 + 1040926905952.

It is an arithmetic number, because the mean of its divisors is an integer number (1040926905952).

Almost surely, 2^{2081853811903} is an apocalyptic number.

2081853811903 is a deficient number, since it is larger than the sum of its proper divisors (1).

2081853811903 is an equidigital number, since it uses as much as digits as its factorization.

2081853811903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 49.

The spelling of 2081853811903 in words is "two trillion, eighty-one billion, eight hundred fifty-three million, eight hundred eleven thousand, nine hundred three".