1728830119509 has 32 divisors (see below), whose sum is σ = 2616705833600. Its totient is φ = 1127785006080.

The previous prime is 1728830119507. The next prime is 1728830119543. The reversal of 1728830119509 is 9059110388271.

1728830119509 is a `hidden beast` number, since 1 + 7 + 288 + 301 + 1 + 9 + 50 + 9 = 666.

It is not a de Polignac number, because 1728830119509 - 2¹ = 1728830119507 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 (1728830119507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2401519 + ... + 3037260.

It is an arithmetic number, because the mean of its divisors is an integer number (81772057300).

Almost surely, 2^{1728830119509} is an apocalyptic number.

It is an amenable number.

1728830119509 is a deficient number, since it is larger than the sum of its proper divisors (887875714091).

1728830119509 is a wasteful number, since it uses less digits than its factorization.

1728830119509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5439042 (or 5439036 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 54.

The spelling of 1728830119509 in words is "one trillion, seven hundred twenty-eight billion, eight hundred thirty million, one hundred nineteen thousand, five hundred nine".