6780655013 has 16 divisors (see below), whose sum is σ = 7425600000. Its totient is φ = 6140519280.

The previous prime is 6780655009. The next prime is 6780655031. The reversal of 6780655013 is 3105560876.

It is a cyclic number.

It is not a de Polignac number, because 6780655013 - 2² = 6780655009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6780651013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4846088 + ... + 4847486.

It is an arithmetic number, because the mean of its divisors is an integer number (464100000).

Almost surely, 2^6780655013 is an apocalyptic number.

It is an amenable number.

6780655013 is a deficient number, since it is larger than the sum of its proper divisors (644944987).

6780655013 is a wasteful number, since it uses less digits than its factorization.

6780655013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2792.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 6780655013 is about 82344.7327580823. The cubic root of 6780655013 is about 1892.7382100144.

The spelling of 6780655013 in words is "six billion, seven hundred eighty million, six hundred fifty-five thousand, thirteen".