6813770616 has 48 divisors (see below), whose sum is σ = 18466314360. Its totient is φ = 2269736640.

The previous prime is 6813770591. The next prime is 6813770651. The reversal of 6813770616 is 6160773186.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79326 + ... + 141138.

Almost surely, 2^6813770616 is an apocalyptic number.

It is an amenable number.

6813770616 is an abundant number, since it is smaller than the sum of its proper divisors (11652543744).

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

6813770616 is a wasteful number, since it uses less digits than its factorization.

6813770616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63356 (or 63349 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 6813770616 is about 82545.5669070120. The cubic root of 6813770616 is about 1895.8144813941.

The spelling of 6813770616 in words is "six billion, eight hundred thirteen million, seven hundred seventy thousand, six hundred sixteen".