3878135529 has 8 divisors (see below), whose sum is σ = 5171380512. Its totient is φ = 2585157120.

The previous prime is 3878135509. The next prime is 3878135537. The reversal of 3878135529 is 9255318783.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3878135529 - 2⁸ = 3878135273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3878135509) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 29784 + ... + 92969.

It is an arithmetic number, because the mean of its divisors is an integer number (646422564).

Almost surely, 2^3878135529 is an apocalyptic number.

It is an amenable number.

3878135529 is a deficient number, since it is larger than the sum of its proper divisors (1293244983).

3878135529 is a wasteful number, since it uses less digits than its factorization.

3878135529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133287.

The product of its digits is 1814400, while the sum is 51.

The square root of 3878135529 is about 62274.6780722309. The cubic root of 3878135529 is about 1571.1138631672.

The spelling of 3878135529 in words is "three billion, eight hundred seventy-eight million, one hundred thirty-five thousand, five hundred twenty-nine".