6338667939 has 4 divisors (see below), whose sum is σ = 8451557256. Its totient is φ = 4225778624.

The previous prime is 6338667899. The next prime is 6338667961. The reversal of 6338667939 is 9397668336.

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

It is a cyclic number.

It is not a de Polignac number, because 6338667939 - 2⁸ = 6338667683 is a prime.

It is a super-2 number, since 2×6338667939² = 80357422481813015442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6338667739) 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, 1056444654 + ... + 1056444659.

It is an arithmetic number, because the mean of its divisors is an integer number (2112889314).

Almost surely, 2^6338667939 is an apocalyptic number.

6338667939 is a deficient number, since it is larger than the sum of its proper divisors (2112889317).

6338667939 is a wasteful number, since it uses less digits than its factorization.

6338667939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2112889316.

The product of its digits is 26453952, while the sum is 60.

The square root of 6338667939 is about 79615.7518271353. The cubic root of 6338667939 is about 1850.6856906963.

The spelling of 6338667939 in words is "six billion, three hundred thirty-eight million, six hundred sixty-seven thousand, nine hundred thirty-nine".