78027067267 has 2 divisors, whose sum is σ = 78027067268. Its totient is φ = 78027067266.

The previous prime is 78027067213. The next prime is 78027067271. The reversal of 78027067267 is 76276072087.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78027067267 is a prime.

It is not a weakly prime, because it can be changed into another prime (78027061267) 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 as a sum of consecutive naturals, namely, 39013533633 + 39013533634.

It is an arithmetic number, because the mean of its divisors is an integer number (39013533634).

Almost surely, 2^78027067267 is an apocalyptic number.

78027067267 is a deficient number, since it is larger than the sum of its proper divisors (1).

78027067267 is an equidigital number, since it uses as much as digits as its factorization.

78027067267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2765952, while the sum is 52.

The spelling of 78027067267 in words is "seventy-eight billion, twenty-seven million, sixty-seven thousand, two hundred sixty-seven".