67140721042313 has 2 divisors, whose sum is σ = 67140721042314. Its totient is φ = 67140721042312.

The previous prime is 67140721042273. The next prime is 67140721042397. The reversal of 67140721042313 is 31324012704176.

67140721042313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67137752100169 + 2968942144 = 8193763^2 + 54488^2 .

It is a cyclic number.

It is not a de Polignac number, because 67140721042313 - 2¹² = 67140721038217 is a prime.

It is not a weakly prime, because it can be changed into another prime (67145721042313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33570360521156 + 33570360521157.

It is an arithmetic number, because the mean of its divisors is an integer number (33570360521157).

Almost surely, 2^{67140721042313} is an apocalyptic number.

It is an amenable number.

67140721042313 is a deficient number, since it is larger than the sum of its proper divisors (1).

67140721042313 is an equidigital number, since it uses as much as digits as its factorization.

67140721042313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 41.

Adding to 67140721042313 its reverse (31324012704176), we get a palindrome (98464733746489).

The spelling of 67140721042313 in words is "sixty-seven trillion, one hundred forty billion, seven hundred twenty-one million, forty-two thousand, three hundred thirteen".