6380839305 has 12 divisors (see below), whose sum is σ = 11060121540. Its totient is φ = 3403114272.

The previous prime is 6380839291. The next prime is 6380839343. The reversal of 6380839305 is 5039380836.

6380839305 is a `hidden beast` number, since 638 + 0 + 8 + 3 + 9 + 3 + 0 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 986965056 + 5393874249 = 31416^2 + 73443^2 .

It is not a de Polignac number, because 6380839305 - 2¹⁰ = 6380838281 is a prime.

It is a super-2 number, since 2×6380839305² = 81430220472465766050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 141796429 = 6380839305 / (6 + 3 + 8 + 0 + 8 + 3 + 9 + 3 + 0 + 5).

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 11 ways as a sum of consecutive naturals, for example, 70898170 + ... + 70898259.

It is an arithmetic number, because the mean of its divisors is an integer number (921676795).

Almost surely, 2^6380839305 is an apocalyptic number.

It is an amenable number.

6380839305 is a deficient number, since it is larger than the sum of its proper divisors (4679282235).

6380839305 is a wasteful number, since it uses less digits than its factorization.

6380839305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141796440 (or 141796437 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 6380839305 is about 79880.1558899330. The cubic root of 6380839305 is about 1854.7808465727.

The spelling of 6380839305 in words is "six billion, three hundred eighty million, eight hundred thirty-nine thousand, three hundred five".