16864317903 has 8 divisors (see below), whose sum is σ = 22489757488. Its totient is φ = 11240878464.

The previous prime is 16864317893. The next prime is 16864317929. The reversal of 16864317903 is 30971346861.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16864317903 - 2⁵ = 16864317871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16864317973) 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 7 ways as a sum of consecutive naturals, for example, 480250 + ... + 514167.

It is an arithmetic number, because the mean of its divisors is an integer number (2811219686).

Almost surely, 2^16864317903 is an apocalyptic number.

16864317903 is a deficient number, since it is larger than the sum of its proper divisors (5625439585).

16864317903 is an equidigital number, since it uses as much as digits as its factorization.

16864317903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000073.

The product of its (nonzero) digits is 653184, while the sum is 48.

The spelling of 16864317903 in words is "sixteen billion, eight hundred sixty-four million, three hundred seventeen thousand, nine hundred three".