819106050208 has 48 divisors (see below), whose sum is σ = 1646752143456. Its totient is φ = 400918186240.

The previous prime is 819106050151. The next prime is 819106050239. The reversal of 819106050208 is 802050601918.

It is an unprimeable number.

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, 206223 + ... + 1296433.

It is an arithmetic number, because the mean of its divisors is an integer number (34307336322).

Almost surely, 2^819106050208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 819106050208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (823376071728).

819106050208 is an abundant number, since it is smaller than the sum of its proper divisors (827646093248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

819106050208 is a wasteful number, since it uses less digits than its factorization.

819106050208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090717 (or 1090709 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 40.

The spelling of 819106050208 in words is "eight hundred nineteen billion, one hundred six million, fifty thousand, two hundred eight".