67364004720731 has 2 divisors, whose sum is σ = 67364004720732. Its totient is φ = 67364004720730.

The previous prime is 67364004720659. The next prime is 67364004720773. The reversal of 67364004720731 is 13702740046376.

67364004720731 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67364004720731 is a prime.

It is a super-2 number, since 2×67364004720731² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 67364004720731.

It is not a weakly prime, because it can be changed into another prime (67364004720431) 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, 33682002360365 + 33682002360366.

It is an arithmetic number, because the mean of its divisors is an integer number (33682002360366).

Almost surely, 2^{67364004720731} is an apocalyptic number.

67364004720731 is a deficient number, since it is larger than the sum of its proper divisors (1).

67364004720731 is an equidigital number, since it uses as much as digits as its factorization.

67364004720731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3556224, while the sum is 50.

The spelling of 67364004720731 in words is "sixty-seven trillion, three hundred sixty-four billion, four million, seven hundred twenty thousand, seven hundred thirty-one".