3878335139 has 4 divisors (see below), whose sum is σ = 4432383024. Its totient is φ = 3324287256.

The previous prime is 3878335127. The next prime is 3878335151. The reversal of 3878335139 is 9315338783.

It is a happy number.

3878335139 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (3878335127) and next prime (3878335151).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3878335139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3878335339) by changing a digit.

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, 277023932 + ... + 277023945.

It is an arithmetic number, because the mean of its divisors is an integer number (1108095756).

Almost surely, 2^3878335139 is an apocalyptic number.

3878335139 is a deficient number, since it is larger than the sum of its proper divisors (554047885).

3878335139 is an equidigital number, since it uses as much as digits as its factorization.

3878335139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554047884.

The product of its digits is 1632960, while the sum is 50.

The square root of 3878335139 is about 62276.2807094322. The cubic root of 3878335139 is about 1571.1408181009.

The spelling of 3878335139 in words is "three billion, eight hundred seventy-eight million, three hundred thirty-five thousand, one hundred thirty-nine".