19104389999 has 8 divisors (see below), whose sum is σ = 20230256160. Its totient is φ = 17978754816.

The previous prime is 19104389957. The next prime is 19104390031. The reversal of 19104389999 is 99998340191.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19104389999 - 2²⁰ = 19103341423 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 (19104389929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130022 + ... + 234764.

It is an arithmetic number, because the mean of its divisors is an integer number (2528782020).

Almost surely, 2^19104389999 is an apocalyptic number.

19104389999 is a deficient number, since it is larger than the sum of its proper divisors (1125866161).

19104389999 is a wasteful number, since it uses less digits than its factorization.

19104389999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115489.

The product of its (nonzero) digits is 5668704, while the sum is 62.

The spelling of 19104389999 in words is "nineteen billion, one hundred four million, three hundred eighty-nine thousand, nine hundred ninety-nine".