819052643803 has 2 divisors, whose sum is σ = 819052643804. Its totient is φ = 819052643802.

The previous prime is 819052643797. The next prime is 819052643813. The reversal of 819052643803 is 308346250918.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 819052643803 - 2¹⁷ = 819052512731 is a prime.

It is not a weakly prime, because it can be changed into another prime (819052643813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 409526321901 + 409526321902.

It is an arithmetic number, because the mean of its divisors is an integer number (409526321902).

Almost surely, 2^819052643803 is an apocalyptic number.

819052643803 is a deficient number, since it is larger than the sum of its proper divisors (1).

819052643803 is an equidigital number, since it uses as much as digits as its factorization.

819052643803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1244160, while the sum is 49.

The spelling of 819052643803 in words is "eight hundred nineteen billion, fifty-two million, six hundred forty-three thousand, eight hundred three".