3878258286 has 64 divisors (see below), whose sum is σ = 9161441280. Its totient is φ = 1071053280.

The previous prime is 3878258261. The next prime is 3878258299. The reversal of 3878258286 is 6828528783.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1778745 + ... + 1780923.

It is an arithmetic number, because the mean of its divisors is an integer number (143147520).

Almost surely, 2^3878258286 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3878258286, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4580720640).

3878258286 is an abundant number, since it is smaller than the sum of its proper divisors (5283182994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3878258286 is a wasteful number, since it uses less digits than its factorization.

3878258286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3589.

The product of its digits is 10321920, while the sum is 57.

The square root of 3878258286 is about 62275.6636737016. The cubic root of 3878258286 is about 1571.1304401356.

The spelling of 3878258286 in words is "three billion, eight hundred seventy-eight million, two hundred fifty-eight thousand, two hundred eighty-six".