67813654913 has 2 divisors, whose sum is σ = 67813654914. Its totient is φ = 67813654912.

The previous prime is 67813654837. The next prime is 67813654933. The reversal of 67813654913 is 31945631876.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62671617649 + 5142037264 = 250343^2 + 71708^2 .

It is a cyclic number.

It is not a de Polignac number, because 67813654913 - 2¹⁰ = 67813653889 is a prime.

It is not a weakly prime, because it can be changed into another prime (67813654933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33906827456 + 33906827457.

It is an arithmetic number, because the mean of its divisors is an integer number (33906827457).

Almost surely, 2^67813654913 is an apocalyptic number.

It is an amenable number.

67813654913 is a deficient number, since it is larger than the sum of its proper divisors (1).

67813654913 is an equidigital number, since it uses as much as digits as its factorization.

67813654913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3265920, while the sum is 53.

The spelling of 67813654913 in words is "sixty-seven billion, eight hundred thirteen million, six hundred fifty-four thousand, nine hundred thirteen".