2081635799 has 8 divisors (see below), whose sum is σ = 2140367328. Its totient is φ = 2023034400.

The previous prime is 2081635793. The next prime is 2081635867. The reversal of 2081635799 is 9975361802.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2081635799 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 (2081635793) 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, 374 + ... + 64524.

It is an arithmetic number, because the mean of its divisors is an integer number (267545916).

Almost surely, 2^2081635799 is an apocalyptic number.

2081635799 is a deficient number, since it is larger than the sum of its proper divisors (58731529).

2081635799 is an equidigital number, since it uses as much as digits as its factorization.

2081635799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65065.

The product of its (nonzero) digits is 816480, while the sum is 50.

The square root of 2081635799 is about 45624.9471122981. The cubic root of 2081635799 is about 1276.8354033104.

The spelling of 2081635799 in words is "two billion, eighty-one million, six hundred thirty-five thousand, seven hundred ninety-nine".