3868870185 has 24 divisors (see below), whose sum is σ = 6707605320. Its totient is φ = 2062916352.

The previous prime is 3868870127. The next prime is 3868870223. The reversal of 3868870185 is 5810788683.

It is a happy number.

3868870185 is a `hidden beast` number, since 386 + 8 + 87 + 0 + 185 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 240374016 + 3628496169 = 15504^2 + 60237^2 .

It is not a de Polignac number, because 3868870185 - 2¹¹ = 3868868137 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 272851 + ... + 286679.

It is an arithmetic number, because the mean of its divisors is an integer number (279483555).

Almost surely, 2^3868870185 is an apocalyptic number.

It is an amenable number.

3868870185 is a deficient number, since it is larger than the sum of its proper divisors (2838735135).

3868870185 is a wasteful number, since it uses less digits than its factorization.

3868870185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20057 (or 20054 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 54.

The square root of 3868870185 is about 62200.2426442213. The cubic root of 3868870185 is about 1569.8616705041.

The spelling of 3868870185 in words is "three billion, eight hundred sixty-eight million, eight hundred seventy thousand, one hundred eighty-five".