3878275212 has 576 divisors, whose sum is σ = 13586227200. Its totient is φ = 905748480.

The previous prime is 3878275211. The next prime is 3878275223. The reversal of 3878275212 is 2125728783.

3878275212 is a `hidden beast` number, since 38 + 78 + 27 + 521 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (3878275211) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 73174978 + ... + 73175030.

It is an arithmetic number, because the mean of its divisors is an integer number (23587200).

Almost surely, 2^3878275212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3878275212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6793113600).

3878275212 is an abundant number, since it is smaller than the sum of its proper divisors (9707951988).

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

3878275212 is a wasteful number, since it uses less digits than its factorization.

3878275212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166 (or 161 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 3878275212 is about 62275.7995693351. The cubic root of 3878275212 is about 1571.1327257763.

The spelling of 3878275212 in words is "three billion, eight hundred seventy-eight million, two hundred seventy-five thousand, two hundred twelve".