2681868066185 has 64 divisors (see below), whose sum is σ = 4131818532864. Its totient is φ = 1622532038400.

The previous prime is 2681868066181. The next prime is 2681868066197. The reversal of 2681868066185 is 5816608681862.

2681868066185 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2681868066185 - 2² = 2681868066181 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2681868066181) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2083220 + ... + 3115050.

It is an arithmetic number, because the mean of its divisors is an integer number (64559664576).

Almost surely, 2^{2681868066185} is an apocalyptic number.

It is an amenable number.

2681868066185 is a deficient number, since it is larger than the sum of its proper divisors (1449950466679).

2681868066185 is a wasteful number, since it uses less digits than its factorization.

2681868066185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032054.

The product of its (nonzero) digits is 53084160, while the sum is 65.

The spelling of 2681868066185 in words is "two trillion, six hundred eighty-one billion, eight hundred sixty-eight million, sixty-six thousand, one hundred eighty-five".