6730686838 has 8 divisors (see below), whose sum is σ = 10156486032. Its totient is φ = 3345191496.

The previous prime is 6730686817. The next prime is 6730686839. The reversal of 6730686838 is 8386860376.

It is a happy number.

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

It is a super-2 number, since 2×6730686838² = 90604290622452876488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6730686839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10075545 + ... + 10076212.

It is an arithmetic number, because the mean of its divisors is an integer number (1269560754).

Almost surely, 2^6730686838 is an apocalyptic number.

6730686838 is a deficient number, since it is larger than the sum of its proper divisors (3425799194).

6730686838 is a wasteful number, since it uses less digits than its factorization.

6730686838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20151926.

The product of its (nonzero) digits is 6967296, while the sum is 55.

The square root of 6730686838 is about 82040.7632704621. The cubic root of 6730686838 is about 1888.0774042032.

The spelling of 6730686838 in words is "six billion, seven hundred thirty million, six hundred eighty-six thousand, eight hundred thirty-eight".