67917792067 has 2 divisors, whose sum is σ = 67917792068. Its totient is φ = 67917792066.

The previous prime is 67917792023. The next prime is 67917792071. The reversal of 67917792067 is 76029771976.

67917792067 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67917792067 is a prime.

It is a super-2 number, since 2×67917792067² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 67917791996 and 67917792014.

It is not a weakly prime, because it can be changed into another prime (67917792077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33958896033 + 33958896034.

It is an arithmetic number, because the mean of its divisors is an integer number (33958896034).

Almost surely, 2^67917792067 is an apocalyptic number.

67917792067 is a deficient number, since it is larger than the sum of its proper divisors (1).

67917792067 is an equidigital number, since it uses as much as digits as its factorization.

67917792067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14002632, while the sum is 61.

The spelling of 67917792067 in words is "sixty-seven billion, nine hundred seventeen million, seven hundred ninety-two thousand, sixty-seven".