67679836867 has 2 divisors, whose sum is σ = 67679836868. Its totient is φ = 67679836866.

The previous prime is 67679836753. The next prime is 67679836937. The reversal of 67679836867 is 76863897676.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67679836867 - 2¹¹ = 67679834819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67679836867.

It is not a weakly prime, because it can be changed into another prime (67679837867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33839918433 + 33839918434.

It is an arithmetic number, because the mean of its divisors is an integer number (33839918434).

Almost surely, 2^67679836867 is an apocalyptic number.

67679836867 is a deficient number, since it is larger than the sum of its proper divisors (1).

67679836867 is an equidigital number, since it uses as much as digits as its factorization.

67679836867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 768144384, while the sum is 73.

The spelling of 67679836867 in words is "sixty-seven billion, six hundred seventy-nine million, eight hundred thirty-six thousand, eight hundred sixty-seven".