67856136067 has 2 divisors, whose sum is σ = 67856136068. Its totient is φ = 67856136066.

The previous prime is 67856136043. The next prime is 67856136091. The reversal of 67856136067 is 76063165876.

It is a balanced prime because it is at equal distance from previous prime (67856136043) and next prime (67856136091).

It is a cyclic number.

It is not a de Polignac number, because 67856136067 - 2²⁷ = 67721918339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67856135999 and 67856136017.

It is not a weakly prime, because it can be changed into another prime (67856136037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33928068033 + 33928068034.

It is an arithmetic number, because the mean of its divisors is an integer number (33928068034).

Almost surely, 2^67856136067 is an apocalyptic number.

67856136067 is a deficient number, since it is larger than the sum of its proper divisors (1).

67856136067 is an equidigital number, since it uses as much as digits as its factorization.

67856136067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7620480, while the sum is 55.

The spelling of 67856136067 in words is "sixty-seven billion, eight hundred fifty-six million, one hundred thirty-six thousand, sixty-seven".