19305135197384 has 32 divisors (see below), whose sum is σ = 36247319141880. Its totient is φ = 9639190854144.

The previous prime is 19305135197311. The next prime is 19305135197399. The reversal of 19305135197384 is 48379153150391.

It can be written as a sum of positive squares in 4 ways, for example, as 18663454094884 + 641681102500 = 4320122^2 + 801050^2 .

It is an unprimeable number.

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, 20410754 + ... + 21335630.

Almost surely, 2^{19305135197384} is an apocalyptic number.

It is an amenable number.

19305135197384 is a deficient number, since it is larger than the sum of its proper divisors (16942183944496).

19305135197384 is a wasteful number, since it uses less digits than its factorization.

19305135197384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928497 (or 928493 counting only the distinct ones).

The product of its (nonzero) digits is 12247200, while the sum is 59.

The spelling of 19305135197384 in words is "nineteen trillion, three hundred five billion, one hundred thirty-five million, one hundred ninety-seven thousand, three hundred eighty-four".