19482728909 has 16 divisors (see below), whose sum is σ = 24077357568. Its totient is φ = 15382747392.

The previous prime is 19482728899. The next prime is 19482728921. The reversal of 19482728909 is 90982728491.

It is a cyclic number.

It is not a de Polignac number, because 19482728909 - 2⁸ = 19482728653 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19482728009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1736114 + ... + 1747299.

It is an arithmetic number, because the mean of its divisors is an integer number (1504834848).

Almost surely, 2^19482728909 is an apocalyptic number.

It is an amenable number.

19482728909 is a deficient number, since it is larger than the sum of its proper divisors (4594628659).

19482728909 is a wasteful number, since it uses less digits than its factorization.

19482728909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3483484.

The product of its (nonzero) digits is 5225472, while the sum is 59.

The spelling of 19482728909 in words is "nineteen billion, four hundred eighty-two million, seven hundred twenty-eight thousand, nine hundred nine".