67748850497 has 2 divisors, whose sum is σ = 67748850498. Its totient is φ = 67748850496.

The previous prime is 67748850461. The next prime is 67748850503. The reversal of 67748850497 is 79405884776.

67748850497 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 can be written as a sum of positive squares in only one way, i.e., 50240532736 + 17508317761 = 224144^2 + 132319^2 .

It is a cyclic number.

It is not a de Polignac number, because 67748850497 - 2⁸ = 67748850241 is a prime.

It is not a weakly prime, because it can be changed into another prime (67748850427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33874425248 + 33874425249.

It is an arithmetic number, because the mean of its divisors is an integer number (33874425249).

Almost surely, 2^67748850497 is an apocalyptic number.

It is an amenable number.

67748850497 is a deficient number, since it is larger than the sum of its proper divisors (1).

67748850497 is an equidigital number, since it uses as much as digits as its factorization.

67748850497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94832640, while the sum is 65.

The spelling of 67748850497 in words is "sixty-seven billion, seven hundred forty-eight million, eight hundred fifty thousand, four hundred ninety-seven".