6868639210 has 16 divisors (see below), whose sum is σ = 12364555392. Its totient is φ = 2747232400.

The previous prime is 6868639207. The next prime is 6868639273. The reversal of 6868639210 is 129368686.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164355 + ... + 201865.

It is an arithmetic number, because the mean of its divisors is an integer number (772784712).

Almost surely, 2^6868639210 is an apocalyptic number.

6868639210 is a deficient number, since it is larger than the sum of its proper divisors (5495916182).

6868639210 is a wasteful number, since it uses less digits than its factorization.

6868639210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55829.

The product of its (nonzero) digits is 746496, while the sum is 49.

The square root of 6868639210 is about 82877.2538758374. The cubic root of 6868639210 is about 1900.8896304778.

The spelling of 6868639210 in words is "six billion, eight hundred sixty-eight million, six hundred thirty-nine thousand, two hundred ten".