19468430009 has 24 divisors (see below), whose sum is σ = 23516173440. Its totient is φ = 15786150912.

The previous prime is 19468429999. The next prime is 19468430021. The reversal of 19468430009 is 90003486491.

It is not a de Polignac number, because 19468430009 - 2¹⁶ = 19468364473 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19468438009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1872377 + ... + 1882745.

It is an arithmetic number, because the mean of its divisors is an integer number (979840560).

Almost surely, 2^19468430009 is an apocalyptic number.

19468430009 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

19468430009 is a deficient number, since it is larger than the sum of its proper divisors (4047743431).

19468430009 is a wasteful number, since it uses less digits than its factorization.

19468430009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11157 (or 11138 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The spelling of 19468430009 in words is "nineteen billion, four hundred sixty-eight million, four hundred thirty thousand, nine".