19604000409 has 24 divisors (see below), whose sum is σ = 30719693088. Its totient is φ = 11086790400.

The previous prime is 19604000401. The next prime is 19604000411. The reversal of 19604000409 is 90400040691.

It is not a de Polignac number, because 19604000409 - 2³ = 19604000401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19604000409.

It is not an unprimeable number, because it can be changed into a prime (19604000401) 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 23 ways as a sum of consecutive naturals, for example, 673167 + ... + 701684.

It is an arithmetic number, because the mean of its divisors is an integer number (1279987212).

Almost surely, 2^19604000409 is an apocalyptic number.

It is an amenable number.

19604000409 is a deficient number, since it is larger than the sum of its proper divisors (11115692679).

19604000409 is a wasteful number, since it uses less digits than its factorization.

19604000409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374965 (or 1374958 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The spelling of 19604000409 in words is "nineteen billion, six hundred four million, four hundred nine", and thus it is an aban number.