6378152538 has 8 divisors (see below), whose sum is σ = 12756305088. Its totient is φ = 2126050844.

The previous prime is 6378152509. The next prime is 6378152581. The reversal of 6378152538 is 8352518736.

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

6378152538 is an admirable number.

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, 531512706 + ... + 531512717.

It is an arithmetic number, because the mean of its divisors is an integer number (1594538136).

Almost surely, 2^6378152538 is an apocalyptic number.

6378152538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6378152538 is a wasteful number, since it uses less digits than its factorization.

6378152538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063025428.

The product of its digits is 1209600, while the sum is 48.

The square root of 6378152538 is about 79863.3366320241. The cubic root of 6378152538 is about 1854.5204804285.

The spelling of 6378152538 in words is "six billion, three hundred seventy-eight million, one hundred fifty-two thousand, five hundred thirty-eight".