16409275789 has 6 divisors (see below), whose sum is σ = 17431307114. Its totient is φ = 15444024000.

The previous prime is 16409275763. The next prime is 16409275801. The reversal of 16409275789 is 98757290461.

16409275789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 8531293225 + 7877982564 = 92365^2 + 88758^2 .

It is not a de Polignac number, because 16409275789 - 2²⁵ = 16375721357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16409275189) 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 in 5 ways as a sum of consecutive naturals, for example, 28389462 + ... + 28390039.

Almost surely, 2^16409275789 is an apocalyptic number.

It is an amenable number.

16409275789 is a deficient number, since it is larger than the sum of its proper divisors (1022031325).

16409275789 is an equidigital number, since it uses as much as digits as its factorization.

16409275789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56779535 (or 56779518 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 58.

The spelling of 16409275789 in words is "sixteen billion, four hundred nine million, two hundred seventy-five thousand, seven hundred eighty-nine".