67235089091 has 2 divisors, whose sum is σ = 67235089092. Its totient is φ = 67235089090.

The previous prime is 67235089073. The next prime is 67235089093. The reversal of 67235089091 is 19098053276.

67235089091 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-67235089091 is a prime.

Together with 67235089093, 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 (67235089093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33617544545 + 33617544546.

It is an arithmetic number, because the mean of its divisors is an integer number (33617544546).

Almost surely, 2^67235089091 is an apocalyptic number.

67235089091 is a deficient number, since it is larger than the sum of its proper divisors (1).

67235089091 is an equidigital number, since it uses as much as digits as its factorization.

67235089091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 50.

The spelling of 67235089091 in words is "sixty-seven billion, two hundred thirty-five million, eighty-nine thousand, ninety-one".