2010865681 has 16 divisors (see below), whose sum is σ = 2223302400. Its totient is φ = 1803513600.

The previous prime is 2010865669. The next prime is 2010865697. The reversal of 2010865681 is 1865680102.

It is a cyclic number.

It is not a de Polignac number, because 2010865681 - 2²⁷ = 1876647953 is a prime.

It is a super-2 number, since 2×2010865681² = 8087161574047187522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2010865681.

It is not an unprimeable number, because it can be changed into a prime (2010862681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285480 + ... + 292438.

It is an arithmetic number, because the mean of its divisors is an integer number (138956400).

Almost surely, 2^2010865681 is an apocalyptic number.

It is an amenable number.

2010865681 is a deficient number, since it is larger than the sum of its proper divisors (212436719).

2010865681 is a wasteful number, since it uses less digits than its factorization.

2010865681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7320.

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 2010865681 is about 44842.6770052815. The cubic root of 2010865681 is about 1262.1985804098.

The spelling of 2010865681 in words is "two billion, ten million, eight hundred sixty-five thousand, six hundred eighty-one".