16428041768 has 16 divisors (see below), whose sum is σ = 30811010580. Its totient is φ = 8211772288.

The previous prime is 16428041719. The next prime is 16428041831. The reversal of 16428041768 is 86714082461.

It can be written as a sum of positive squares in 2 ways, for example, as 15470881924 + 957159844 = 124382^2 + 30938^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249821 + ... + 308652.

Almost surely, 2^16428041768 is an apocalyptic number.

It is an amenable number.

16428041768 is a deficient number, since it is larger than the sum of its proper divisors (14382968812).

16428041768 is a wasteful number, since it uses less digits than its factorization.

16428041768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562156 (or 562152 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 47.

The spelling of 16428041768 in words is "sixteen billion, four hundred twenty-eight million, forty-one thousand, seven hundred sixty-eight".