3878151812 has 12 divisors (see below), whose sum is σ = 6810919836. Its totient is φ = 1932174720.

The previous prime is 3878151803. The next prime is 3878151839. The reversal of 3878151812 is 2181518783.

It can be written as a sum of positive squares in 2 ways, for example, as 1711807876 + 2166343936 = 41374^2 + 46544^2 .

It is a super-2 number, since 2×3878151812² = 30080122953837766688, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 1724033 + ... + 1726280.

It is an arithmetic number, because the mean of its divisors is an integer number (567576653).

Almost surely, 2^3878151812 is an apocalyptic number.

It is an amenable number.

3878151812 is a deficient number, since it is larger than the sum of its proper divisors (2932768024).

3878151812 is a wasteful number, since it uses less digits than its factorization.

3878151812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3450598 (or 3450596 counting only the distinct ones).

The product of its digits is 107520, while the sum is 44.

The square root of 3878151812 is about 62274.8088074143. The cubic root of 3878151812 is about 1571.1160620255.

The spelling of 3878151812 in words is "three billion, eight hundred seventy-eight million, one hundred fifty-one thousand, eight hundred twelve".