2081385871 has 8 divisors (see below), whose sum is σ = 2207859120. Its totient is φ = 1955361408.

The previous prime is 2081385863. The next prime is 2081385947. The reversal of 2081385871 is 1785831802.

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

It is a cyclic number.

It is not a de Polignac number, because 2081385871 - 2³ = 2081385863 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 (2081385821) 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, 102616 + ... + 121213.

It is an arithmetic number, because the mean of its divisors is an integer number (275982390).

Almost surely, 2^2081385871 is an apocalyptic number.

2081385871 is a deficient number, since it is larger than the sum of its proper divisors (126473249).

2081385871 is a wasteful number, since it uses less digits than its factorization.

2081385871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224393.

The product of its (nonzero) digits is 107520, while the sum is 43.

The square root of 2081385871 is about 45622.2080899204. The cubic root of 2081385871 is about 1276.7843009207.

The spelling of 2081385871 in words is "two billion, eighty-one million, three hundred eighty-five thousand, eight hundred seventy-one".