2063806856 has 16 divisors (see below), whose sum is σ = 3942650700. Its totient is φ = 1012433344.

The previous prime is 2063806841. The next prime is 2063806861. The reversal of 2063806856 is 6586083602.

It can be written as a sum of positive squares in 2 ways, for example, as 2037077956 + 26728900 = 45134^2 + 5170^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2433311 + ... + 2434158.

Almost surely, 2^2063806856 is an apocalyptic number.

It is an amenable number.

2063806856 is a deficient number, since it is larger than the sum of its proper divisors (1878843844).

2063806856 is a wasteful number, since it uses less digits than its factorization.

2063806856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4867528 (or 4867524 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 2063806856 is about 45429.1410440479. The cubic root of 2063806856 is about 1273.1796359416.

The spelling of 2063806856 in words is "two billion, sixty-three million, eight hundred six thousand, eight hundred fifty-six".