2085706680 has 64 divisors (see below), whose sum is σ = 6472893600. Its totient is φ = 537008640.

The previous prime is 2085706673. The next prime is 2085706771. The reversal of 2085706680 is 866075802.

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 15 ways as a sum of consecutive naturals, for example, 296191 + ... + 303150.

Almost surely, 2^2085706680 is an apocalyptic number.

2085706680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2085706680 is an abundant number, since it is smaller than the sum of its proper divisors (4387186920).

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

2085706680 is a wasteful number, since it uses less digits than its factorization.

2085706680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599384 (or 599380 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 2085706680 is about 45669.5377686265. The cubic root of 2085706680 is about 1277.6671947205.

The spelling of 2085706680 in words is "two billion, eighty-five million, seven hundred six thousand, six hundred eighty".