6829378505 has 8 divisors (see below), whose sum is σ = 8196102600. Its totient is φ = 5462937216.

The previous prime is 6829378483. The next prime is 6829378529. The reversal of 6829378505 is 5058739286.

It can be written as a sum of positive squares in 4 ways, for example, as 4555710016 + 2273668489 = 67496^2 + 47683^2 .

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 6829378505 - 2¹⁴ = 6829362121 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13340 + ... + 117629.

It is an arithmetic number, because the mean of its divisors is an integer number (1024512825).

Almost surely, 2^6829378505 is an apocalyptic number.

It is an amenable number.

6829378505 is a deficient number, since it is larger than the sum of its proper divisors (1366724095).

6829378505 is a wasteful number, since it uses less digits than its factorization.

6829378505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141403.

The product of its (nonzero) digits is 3628800, while the sum is 53.

The square root of 6829378505 is about 82640.0538782496. The cubic root of 6829378505 is about 1897.2609197558.

The spelling of 6829378505 in words is "six billion, eight hundred twenty-nine million, three hundred seventy-eight thousand, five hundred five".