6847639992 has 64 divisors (see below), whose sum is σ = 19189620000. Its totient is φ = 2262339072.

The previous prime is 6847639921. The next prime is 6847640011. The reversal of 6847639992 is 2999367486.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115867 + ... + 164682.

Almost surely, 2^6847639992 is an apocalyptic number.

It is an amenable number.

6847639992 is an abundant number, since it is smaller than the sum of its proper divisors (12341980008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6847639992 is a wasteful number, since it uses less digits than its factorization.

6847639992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280677 (or 280667 counting only the distinct ones).

The product of its digits is 35271936, while the sum is 63.

The square root of 6847639992 is about 82750.4682282826. The cubic root of 6847639992 is about 1898.9504815022.

The spelling of 6847639992 in words is "six billion, eight hundred forty-seven million, six hundred thirty-nine thousand, nine hundred ninety-two".