2105851682 has 16 divisors (see below), whose sum is σ = 3447175104. Its totient is φ = 956862000.

The previous prime is 2105851679. The next prime is 2105851747. The reversal of 2105851682 is 2861585012.

It is a super-2 number, since 2×2105851682² = 8869222613164458248, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 51707 + ... + 82977.

It is an arithmetic number, because the mean of its divisors is an integer number (215448444).

Almost surely, 2^2105851682 is an apocalyptic number.

2105851682 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2105851682 is a deficient number, since it is larger than the sum of its proper divisors (1341323422).

2105851682 is a wasteful number, since it uses less digits than its factorization.

2105851682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34345.

The product of its (nonzero) digits is 38400, while the sum is 38.

The square root of 2105851682 is about 45889.5596187194. The cubic root of 2105851682 is about 1281.7675130057.

The spelling of 2105851682 in words is "two billion, one hundred five million, eight hundred fifty-one thousand, six hundred eighty-two".