19349426393 has 8 divisors (see below), whose sum is σ = 21262543200. Its totient is φ = 17461989280.

The previous prime is 19349426387. The next prime is 19349426413. The reversal of 19349426393 is 39362494391.

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 19349426393 - 2⁶ = 19349426329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19349426693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6418343 + ... + 6421356.

It is an arithmetic number, because the mean of its divisors is an integer number (2657817900).

Almost surely, 2^19349426393 is an apocalyptic number.

It is an amenable number.

19349426393 is a deficient number, since it is larger than the sum of its proper divisors (1913116807).

19349426393 is a wasteful number, since it uses less digits than its factorization.

19349426393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12839847.

The product of its digits is 3779136, while the sum is 53.

The spelling of 19349426393 in words is "nineteen billion, three hundred forty-nine million, four hundred twenty-six thousand, three hundred ninety-three".