499444322217 has 16 divisors (see below), whose sum is σ = 669536432640. Its totient is φ = 331160602752.

The previous prime is 499444322147. The next prime is 499444322219. The reversal of 499444322217 is 712223444994.

499444322217 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 499444322217 - 2¹⁶ = 499444256681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 499444322217.

It is not an unprimeable number, because it can be changed into a prime (499444322219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273288 + ... + 1036134.

It is an arithmetic number, because the mean of its divisors is an integer number (41846027040).

Almost surely, 2^499444322217 is an apocalyptic number.

It is an amenable number.

499444322217 is a deficient number, since it is larger than the sum of its proper divisors (170092110423).

499444322217 is a wasteful number, since it uses less digits than its factorization.

499444322217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764032.

The product of its digits is 3483648, while the sum is 51.

The spelling of 499444322217 in words is "four hundred ninety-nine billion, four hundred forty-four million, three hundred twenty-two thousand, two hundred seventeen".