19304540911 has 8 divisors (see below), whose sum is σ = 20752922880. Its totient is φ = 17899394328.

The previous prime is 19304540909. The next prime is 19304540921. The reversal of 19304540911 is 11904540391.

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 19304540911 - 2¹ = 19304540909 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 (19304540921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10807921 + ... + 10809706.

It is an arithmetic number, because the mean of its divisors is an integer number (2594115360).

Almost surely, 2^19304540911 is an apocalyptic number.

19304540911 is a deficient number, since it is larger than the sum of its proper divisors (1448381969).

19304540911 is a wasteful number, since it uses less digits than its factorization.

19304540911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21617693.

The product of its (nonzero) digits is 19440, while the sum is 37.

The spelling of 19304540911 in words is "nineteen billion, three hundred four million, five hundred forty thousand, nine hundred eleven".