850484203819 has 4 divisors (see below), whose sum is σ = 879811245360. Its totient is φ = 821157162280.

The previous prime is 850484203801. The next prime is 850484203897. The reversal of 850484203819 is 918302484058.

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

It is a cyclic number.

It is not a de Polignac number, because 850484203819 - 2⁵ = 850484203787 is a prime.

It is a super-2 number, since 2×850484203819² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (850484203319) 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 3 ways as a sum of consecutive naturals, for example, 14663520727 + ... + 14663520784.

It is an arithmetic number, because the mean of its divisors is an integer number (219952811340).

Almost surely, 2^850484203819 is an apocalyptic number.

850484203819 is a deficient number, since it is larger than the sum of its proper divisors (29327041541).

850484203819 is a wasteful number, since it uses less digits than its factorization.

850484203819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29327041540.

The product of its (nonzero) digits is 2211840, while the sum is 52.

The spelling of 850484203819 in words is "eight hundred fifty billion, four hundred eighty-four million, two hundred three thousand, eight hundred nineteen".