16823623847 has 2 divisors, whose sum is σ = 16823623848. Its totient is φ = 16823623846.

The previous prime is 16823623819. The next prime is 16823623871. The reversal of 16823623847 is 74832632861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16823623847 - 2⁶ = 16823623783 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16823623795 and 16823623804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16823623807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8411811923 + 8411811924.

It is an arithmetic number, because the mean of its divisors is an integer number (8411811924).

Almost surely, 2^16823623847 is an apocalyptic number.

16823623847 is a deficient number, since it is larger than the sum of its proper divisors (1).

16823623847 is an equidigital number, since it uses as much as digits as its factorization.

16823623847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2322432, while the sum is 50.

The spelling of 16823623847 in words is "sixteen billion, eight hundred twenty-three million, six hundred twenty-three thousand, eight hundred forty-seven".