85426417667 has 2 divisors, whose sum is σ = 85426417668. Its totient is φ = 85426417666.

The previous prime is 85426417649. The next prime is 85426417669. The reversal of 85426417667 is 76671462458.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85426417667 - 2⁶ = 85426417603 is a prime.

Together with 85426417669, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (85426417669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42713208833 + 42713208834.

It is an arithmetic number, because the mean of its divisors is an integer number (42713208834).

Almost surely, 2^85426417667 is an apocalyptic number.

85426417667 is a deficient number, since it is larger than the sum of its proper divisors (1).

85426417667 is an equidigital number, since it uses as much as digits as its factorization.

85426417667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13547520, while the sum is 56.

The spelling of 85426417667 in words is "eighty-five billion, four hundred twenty-six million, four hundred seventeen thousand, six hundred sixty-seven".