6779018613 has 16 divisors (see below), whose sum is σ = 9119088000. Its totient is φ = 4479283200.

The previous prime is 6779018611. The next prime is 6779018641. The reversal of 6779018613 is 3168109776.

It is a happy number.

It is not a de Polignac number, because 6779018613 - 2¹ = 6779018611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6779018611) 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, 186733 + ... + 220061.

It is an arithmetic number, because the mean of its divisors is an integer number (569943000).

Almost surely, 2^6779018613 is an apocalyptic number.

It is an amenable number.

6779018613 is a deficient number, since it is larger than the sum of its proper divisors (2340069387).

6779018613 is a wasteful number, since it uses less digits than its factorization.

6779018613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33932.

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 6779018613 is about 82334.7958824214. The cubic root of 6779018613 is about 1892.5859373114.

The spelling of 6779018613 in words is "six billion, seven hundred seventy-nine million, eighteen thousand, six hundred thirteen".