823207608019 has 2 divisors, whose sum is σ = 823207608020. Its totient is φ = 823207608018.

The previous prime is 823207608001. The next prime is 823207608103. The reversal of 823207608019 is 910806702328.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 823207608019 - 2¹¹ = 823207605971 is a prime.

It is a super-2 number, since 2×823207608019² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 823207608019.

It is not a weakly prime, because it can be changed into another prime (823204608019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411603804009 + 411603804010.

It is an arithmetic number, because the mean of its divisors is an integer number (411603804010).

Almost surely, 2^823207608019 is an apocalyptic number.

823207608019 is a deficient number, since it is larger than the sum of its proper divisors (1).

823207608019 is an equidigital number, since it uses as much as digits as its factorization.

823207608019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 823207608019 in words is "eight hundred twenty-three billion, two hundred seven million, six hundred eight thousand, nineteen".