19393896717 has 32 divisors (see below), whose sum is σ = 30982291200. Its totient is φ = 11919099456.

The previous prime is 19393896689. The next prime is 19393896719. The reversal of 19393896717 is 71769839391.

19393896717 is a `hidden beast` number, since 193 + 9 + 389 + 67 + 1 + 7 = 666.

It is not a de Polignac number, because 19393896717 - 2¹¹ = 19393894669 is a prime.

It is a super-2 number, since 2×19393896717² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19393896719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 235584 + ... + 307062.

It is an arithmetic number, because the mean of its divisors is an integer number (968196600).

Almost surely, 2^19393896717 is an apocalyptic number.

It is an amenable number.

19393896717 is a deficient number, since it is larger than the sum of its proper divisors (11588394483).

19393896717 is a wasteful number, since it uses less digits than its factorization.

19393896717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72274 (or 72268 counting only the distinct ones).

The product of its digits is 15431472, while the sum is 63.

The spelling of 19393896717 in words is "nineteen billion, three hundred ninety-three million, eight hundred ninety-six thousand, seven hundred seventeen".