16428104920849 has 16 divisors (see below), whose sum is σ = 17009131708800. Its totient is φ = 15848051901696.

The previous prime is 16428104920837. The next prime is 16428104920859. The reversal of 16428104920849 is 94802940182461.

It is a cyclic number.

It is not a de Polignac number, because 16428104920849 - 2²⁷ = 16427970703121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16428104920793 and 16428104920802.

It is not an unprimeable number, because it can be changed into a prime (16428104920859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227806132 + ... + 227878234.

It is an arithmetic number, because the mean of its divisors is an integer number (1063070731800).

Almost surely, 2^{16428104920849} is an apocalyptic number.

It is an amenable number.

16428104920849 is a deficient number, since it is larger than the sum of its proper divisors (581026787951).

16428104920849 is a wasteful number, since it uses less digits than its factorization.

16428104920849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78744.

The product of its (nonzero) digits is 7962624, while the sum is 58.

The spelling of 16428104920849 in words is "sixteen trillion, four hundred twenty-eight billion, one hundred four million, nine hundred twenty thousand, eight hundred forty-nine".