16704813789 has 10 divisors (see below), whose sum is σ = 24954104670. Its totient is φ = 11136542472.

The previous prime is 16704813779. The next prime is 16704813821. The reversal of 16704813789 is 98731840761.

16704813789 is a `hidden beast` number, since 16 + 70 + 481 + 3 + 7 + 89 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12178888164 + 4525925625 = 110358^2 + 67275^2 .

It is not a de Polignac number, because 16704813789 - 2²¹ = 16702716637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16704813779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 103116054 + ... + 103116215.

It is an arithmetic number, because the mean of its divisors is an integer number (2495410467).

Almost surely, 2^16704813789 is an apocalyptic number.

It is an amenable number.

16704813789 is a deficient number, since it is larger than the sum of its proper divisors (8249290881).

16704813789 is an equidigital number, since it uses as much as digits as its factorization.

16704813789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206232281 (or 206232272 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The spelling of 16704813789 in words is "sixteen billion, seven hundred four million, eight hundred thirteen thousand, seven hundred eighty-nine".