16398894227 has 2 divisors, whose sum is σ = 16398894228. Its totient is φ = 16398894226.

The previous prime is 16398894217. The next prime is 16398894233. The reversal of 16398894227 is 72249889361.

It is a happy number.

16398894227 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16398894227 is a prime.

It is not a weakly prime, because it can be changed into another prime (16398894217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8199447113 + 8199447114.

It is an arithmetic number, because the mean of its divisors is an integer number (8199447114).

Almost surely, 2^16398894227 is an apocalyptic number.

16398894227 is a deficient number, since it is larger than the sum of its proper divisors (1).

16398894227 is an equidigital number, since it uses as much as digits as its factorization.

16398894227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10450944, while the sum is 59.

The spelling of 16398894227 in words is "sixteen billion, three hundred ninety-eight million, eight hundred ninety-four thousand, two hundred twenty-seven".