6829800638 has 4 divisors (see below), whose sum is σ = 10244700960. Its totient is φ = 3414900318.

The previous prime is 6829800631. The next prime is 6829800799. The reversal of 6829800638 is 8360089286.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6829800631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1707450158 + ... + 1707450161.

It is an arithmetic number, because the mean of its divisors is an integer number (2561175240).

Almost surely, 2^6829800638 is an apocalyptic number.

6829800638 is a deficient number, since it is larger than the sum of its proper divisors (3414900322).

6829800638 is a wasteful number, since it uses less digits than its factorization.

6829800638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3414900321.

The product of its (nonzero) digits is 995328, while the sum is 50.

The square root of 6829800638 is about 82642.6078847951. The cubic root of 6829800638 is about 1897.3000096936.

The spelling of 6829800638 in words is "six billion, eight hundred twenty-nine million, eight hundred thousand, six hundred thirty-eight".