67731344030491 has 2 divisors, whose sum is σ = 67731344030492. Its totient is φ = 67731344030490.

The previous prime is 67731344030429. The next prime is 67731344030527. The reversal of 67731344030491 is 19403044313776.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67731344030491 - 2¹¹ = 67731344028443 is a prime.

It is not a weakly prime, because it can be changed into another prime (67731344030891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33865672015245 + 33865672015246.

It is an arithmetic number, because the mean of its divisors is an integer number (33865672015246).

Almost surely, 2^{67731344030491} is an apocalyptic number.

67731344030491 is a deficient number, since it is larger than the sum of its proper divisors (1).

67731344030491 is an equidigital number, since it uses as much as digits as its factorization.

67731344030491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4572288, while the sum is 52.

The spelling of 67731344030491 in words is "sixty-seven trillion, seven hundred thirty-one billion, three hundred forty-four million, thirty thousand, four hundred ninety-one".