3878278118 has 32 divisors (see below), whose sum is σ = 6854319360. Its totient is φ = 1622518560.

The previous prime is 3878278087. The next prime is 3878278133. The reversal of 3878278118 is 8118728783.

It is a self number, because there is not a number n which added to its sum of digits gives 3878278118.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79703 + ... + 118781.

It is an arithmetic number, because the mean of its divisors is an integer number (214197480).

Almost surely, 2^3878278118 is an apocalyptic number.

3878278118 is a deficient number, since it is larger than the sum of its proper divisors (2976041242).

3878278118 is a wasteful number, since it uses less digits than its factorization.

3878278118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39452.

The product of its digits is 1204224, while the sum is 53.

The square root of 3878278118 is about 62275.8229010264. The cubic root of 3878278118 is about 1571.1331181939.

The spelling of 3878278118 in words is "three billion, eight hundred seventy-eight million, two hundred seventy-eight thousand, one hundred eighteen".