67135919233 has 2 divisors, whose sum is σ = 67135919234. Its totient is φ = 67135919232.

The previous prime is 67135919231. The next prime is 67135919243. The reversal of 67135919233 is 33291953176.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48087226944 + 19048692289 = 219288^2 + 138017^2 .

It is a cyclic number.

It is not a de Polignac number, because 67135919233 - 2¹ = 67135919231 is a prime.

Together with 67135919231, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (67135919231) 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, 33567959616 + 33567959617.

It is an arithmetic number, because the mean of its divisors is an integer number (33567959617).

Almost surely, 2^67135919233 is an apocalyptic number.

It is an amenable number.

67135919233 is a deficient number, since it is larger than the sum of its proper divisors (1).

67135919233 is an equidigital number, since it uses as much as digits as its factorization.

67135919233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 918540, while the sum is 49.

The spelling of 67135919233 in words is "sixty-seven billion, one hundred thirty-five million, nine hundred nineteen thousand, two hundred thirty-three".