16804947827 has 2 divisors, whose sum is σ = 16804947828. Its totient is φ = 16804947826.

The previous prime is 16804947793. The next prime is 16804947829. The reversal of 16804947827 is 72874940861.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16804947827 is a prime.

Together with 16804947829, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16804947829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8402473913 + 8402473914.

It is an arithmetic number, because the mean of its divisors is an integer number (8402473914).

Almost surely, 2^16804947827 is an apocalyptic number.

16804947827 is a deficient number, since it is larger than the sum of its proper divisors (1).

16804947827 is an equidigital number, since it uses as much as digits as its factorization.

16804947827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5419008, while the sum is 56.

The spelling of 16804947827 in words is "sixteen billion, eight hundred four million, nine hundred forty-seven thousand, eight hundred twenty-seven".