9804119109409 has 3 divisors (see below), whose sum is σ = 9804122240563. Its totient is φ = 9804115978256.

The previous prime is 9804119109391. The next prime is 9804119109553. The reversal of 9804119109409 is 9049019114089.

The square root of 9804119109409 is 3131153.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 9737489045025 + 66630064384 = 3120495^2 + 258128^2 .

It is not a de Polignac number, because 9804119109409 - 2⁵ = 9804119109377 is a prime.

It is a super-2 number, since 2×9804119109409² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9804119109409.

It is not an unprimeable number, because it can be changed into a prime (9804119106409) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1565577 + ... + 4696729.

Almost surely, 2^{9804119109409} is an apocalyptic number.

9804119109409 is the 3131153-rd square number.

9804119109409 is the 1565577-th centered octagonal number.

It is an amenable number.

9804119109409 is a deficient number, since it is larger than the sum of its proper divisors (3131154).

9804119109409 is an frugal number, since it uses more digits than its factorization.

9804119109409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6262306 (or 3131153 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 55.

The spelling of 9804119109409 in words is "nine trillion, eight hundred four billion, one hundred nineteen million, one hundred nine thousand, four hundred nine".