67447481713 has 2 divisors, whose sum is σ = 67447481714. Its totient is φ = 67447481712.

The previous prime is 67447481671. The next prime is 67447481753. The reversal of 67447481713 is 31718474476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62684135424 + 4763346289 = 250368^2 + 69017^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67447481713 is a prime.

It is not a weakly prime, because it can be changed into another prime (67447481753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33723740856 + 33723740857.

It is an arithmetic number, because the mean of its divisors is an integer number (33723740857).

Almost surely, 2^67447481713 is an apocalyptic number.

It is an amenable number.

67447481713 is a deficient number, since it is larger than the sum of its proper divisors (1).

67447481713 is an equidigital number, since it uses as much as digits as its factorization.

67447481713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3161088, while the sum is 52.

The spelling of 67447481713 in words is "sixty-seven billion, four hundred forty-seven million, four hundred eighty-one thousand, seven hundred thirteen".