16923078546317 has 4 divisors (see below), whose sum is σ = 17813766890880. Its totient is φ = 16032390201756.

The previous prime is 16923078546271. The next prime is 16923078546343. The reversal of 16923078546317 is 71364587032961.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16923078546317 - 2²⁸ = 16922810110861 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16923078546317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16923078546377) 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 3 ways as a sum of consecutive naturals, for example, 445344172253 + ... + 445344172290.

It is an arithmetic number, because the mean of its divisors is an integer number (4453441722720).

It is a 2-persistent number, because it is pandigital, and so is 2⋅16923078546317 = 33846157092634, but 3⋅16923078546317 = 50769235638951 is not.

Almost surely, 2^{16923078546317} is an apocalyptic number.

It is an amenable number.

16923078546317 is a deficient number, since it is larger than the sum of its proper divisors (890688344563).

16923078546317 is an equidigital number, since it uses as much as digits as its factorization.

16923078546317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890688344562.

The product of its (nonzero) digits is 45722880, while the sum is 62.

The spelling of 16923078546317 in words is "sixteen trillion, nine hundred twenty-three billion, seventy-eight million, five hundred forty-six thousand, three hundred seventeen".