6707766613 has 4 divisors (see below), whose sum is σ = 6939068940. Its totient is φ = 6476464288.

The previous prime is 6707766521. The next prime is 6707766617. The reversal of 6707766613 is 3166677076.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4697320369 + 2010446244 = 68537^2 + 44838^2 .

It is a cyclic number.

It is not a de Polignac number, because 6707766613 - 2²⁹ = 6170895701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6707766617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115651120 + ... + 115651177.

It is an arithmetic number, because the mean of its divisors is an integer number (1734767235).

Almost surely, 2^6707766613 is an apocalyptic number.

It is an amenable number.

6707766613 is a deficient number, since it is larger than the sum of its proper divisors (231302327).

6707766613 is a wasteful number, since it uses less digits than its factorization.

6707766613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231302326.

The product of its (nonzero) digits is 1333584, while the sum is 49.

The square root of 6707766613 is about 81900.9561177402. The cubic root of 6707766613 is about 1885.9317898845.

The spelling of 6707766613 in words is "six billion, seven hundred seven million, seven hundred sixty-six thousand, six hundred thirteen".