6378936339 has 8 divisors (see below), whose sum is σ = 8539134912. Its totient is φ = 4235681000.

The previous prime is 6378936331. The next prime is 6378936349. The reversal of 6378936339 is 9336398736.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6378936339 - 2³ = 6378936331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6378936331) 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 7 ways as a sum of consecutive naturals, for example, 4234929 + ... + 4236434.

It is an arithmetic number, because the mean of its divisors is an integer number (1067391864).

Almost surely, 2^6378936339 is an apocalyptic number.

6378936339 is a deficient number, since it is larger than the sum of its proper divisors (2160198573).

6378936339 is a wasteful number, since it uses less digits than its factorization.

6378936339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8471617.

The product of its digits is 13226976, while the sum is 57.

The square root of 6378936339 is about 79868.2436203526. The cubic root of 6378936339 is about 1854.5964436723.

It can be divided in two parts, 63789 and 36339, that added together give a triangular number (100128 = T₄₄₇).

The spelling of 6378936339 in words is "six billion, three hundred seventy-eight million, nine hundred thirty-six thousand, three hundred thirty-nine".