3855689250185 has 16 divisors (see below), whose sum is σ = 4637461308480. Its totient is φ = 3077463656640.

The previous prime is 3855689250121. The next prime is 3855689250223. The reversal of 3855689250185 is 5810529865583.

It is not a de Polignac number, because 3855689250185 - 2⁶ = 3855689250121 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18472214 + ... + 18679776.

It is an arithmetic number, because the mean of its divisors is an integer number (289841331780).

Almost surely, 2^{3855689250185} is an apocalyptic number.

It is an amenable number.

3855689250185 is a deficient number, since it is larger than the sum of its proper divisors (781772058295).

3855689250185 is a wasteful number, since it uses less digits than its factorization.

3855689250185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216088.

The product of its (nonzero) digits is 103680000, while the sum is 65.

The spelling of 3855689250185 in words is "three trillion, eight hundred fifty-five billion, six hundred eighty-nine million, two hundred fifty thousand, one hundred eighty-five".