6840215612 has 24 divisors (see below), whose sum is σ = 12640698000. Its totient is φ = 3229739136.

The previous prime is 6840215531. The next prime is 6840215647. The reversal of 6840215612 is 2165120486.

It is a congruent number.

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, 119987 + ... + 167562.

It is an arithmetic number, because the mean of its divisors is an integer number (526695750).

Almost surely, 2^6840215612 is an apocalyptic number.

It is an amenable number.

6840215612 is a deficient number, since it is larger than the sum of its proper divisors (5800482388).

6840215612 is a wasteful number, since it uses less digits than its factorization.

6840215612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287885 (or 287883 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 6840215612 is about 82705.5960138128. The cubic root of 6840215612 is about 1898.2639370193.

The spelling of 6840215612 in words is "six billion, eight hundred forty million, two hundred fifteen thousand, six hundred twelve".