2081715822 has 64 divisors (see below), whose sum is σ = 4759741440. Its totient is φ = 674071488.

The previous prime is 2081715761. The next prime is 2081715833. The reversal of 2081715822 is 2285171802.

2081715822 is a `hidden beast` number, since 2 + 0 + 8 + 1 + 71 + 582 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 344713 + ... + 350699.

It is an arithmetic number, because the mean of its divisors is an integer number (74370960).

Almost surely, 2^2081715822 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2081715822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2379870720).

2081715822 is an abundant number, since it is smaller than the sum of its proper divisors (2678025618).

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

2081715822 is a wasteful number, since it uses less digits than its factorization.

2081715822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6182 (or 6176 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The square root of 2081715822 is about 45625.8240692702. The cubic root of 2081715822 is about 1276.8517646243.

The spelling of 2081715822 in words is "two billion, eighty-one million, seven hundred fifteen thousand, eight hundred twenty-two".