6686773867 has 8 divisors (see below), whose sum is σ = 6844115520. Its totient is φ = 6529515720.

The previous prime is 6686773843. The next prime is 6686773889. The reversal of 6686773867 is 7683776866.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6686773867 - 2¹⁹ = 6686249579 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6686773799 and 6686773808.

It is not an unprimeable number, because it can be changed into a prime (6686773837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159192 + ... + 196762.

It is an arithmetic number, because the mean of its divisors is an integer number (855514440).

Almost surely, 2^6686773867 is an apocalyptic number.

6686773867 is a deficient number, since it is larger than the sum of its proper divisors (157341653).

6686773867 is a wasteful number, since it uses less digits than its factorization.

6686773867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41753.

The product of its digits is 85349376, while the sum is 64.

The square root of 6686773867 is about 81772.6963417497. The cubic root of 6686773867 is about 1883.9623186365.

Subtracting 6686773867 from its reverse (7683776866), we obtain a cube (997002999 = 999³).

The spelling of 6686773867 in words is "six billion, six hundred eighty-six million, seven hundred seventy-three thousand, eight hundred sixty-seven".