19043272580809 has 4 divisors (see below), whose sum is σ = 19043431417216. Its totient is φ = 19043113744404.

The previous prime is 19043272580803. The next prime is 19043272580851. The reversal of 19043272580809 is 90808527234091.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 19043272580809 - 2⁷ = 19043272580681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19043272580803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79238229 + ... + 79478194.

It is an arithmetic number, because the mean of its divisors is an integer number (4760857854304).

Almost surely, 2^{19043272580809} is an apocalyptic number.

It is an amenable number.

19043272580809 is a deficient number, since it is larger than the sum of its proper divisors (158836407).

19043272580809 is a wasteful number, since it uses less digits than its factorization.

19043272580809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158836406.

The product of its (nonzero) digits is 8709120, while the sum is 58.

The spelling of 19043272580809 in words is "nineteen trillion, forty-three billion, two hundred seventy-two million, five hundred eighty thousand, eight hundred nine".