17380816793 has 4 divisors (see below), whose sum is σ = 17381166180. Its totient is φ = 17380467408.

The previous prime is 17380816769. The next prime is 17380816799. The reversal of 17380816793 is 39761808371.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4812613129 + 12568203664 = 69373^2 + 112108^2 .

It is a cyclic number.

It is not a de Polignac number, because 17380816793 - 2²⁸ = 17112381337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17380816799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84578 + ... + 204731.

It is an arithmetic number, because the mean of its divisors is an integer number (4345291545).

Almost surely, 2^17380816793 is an apocalyptic number.

It is an amenable number.

17380816793 is a deficient number, since it is larger than the sum of its proper divisors (349387).

17380816793 is an equidigital number, since it uses as much as digits as its factorization.

17380816793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349386.

The product of its (nonzero) digits is 1524096, while the sum is 53.

The spelling of 17380816793 in words is "seventeen billion, three hundred eighty million, eight hundred sixteen thousand, seven hundred ninety-three".