67974467573 has 2 divisors, whose sum is σ = 67974467574. Its totient is φ = 67974467572.

The previous prime is 67974467551. The next prime is 67974467677. The reversal of 67974467573 is 37576447976.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55082681809 + 12891785764 = 234697^2 + 113542^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67974467573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67974463573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33987233786 + 33987233787.

It is an arithmetic number, because the mean of its divisors is an integer number (33987233787).

Almost surely, 2^67974467573 is an apocalyptic number.

It is an amenable number.

67974467573 is a deficient number, since it is larger than the sum of its proper divisors (1).

67974467573 is an equidigital number, since it uses as much as digits as its factorization.

67974467573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186701760, while the sum is 65.

The spelling of 67974467573 in words is "sixty-seven billion, nine hundred seventy-four million, four hundred sixty-seven thousand, five hundred seventy-three".