74511298068409 has 2 divisors, whose sum is σ = 74511298068410. Its totient is φ = 74511298068408.

The previous prime is 74511298068407. The next prime is 74511298068521. The reversal of 74511298068409 is 90486089211547.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42561988842025 + 31949309226384 = 6523955^2 + 5652372^2 .

It is a cyclic number.

It is not a de Polignac number, because 74511298068409 - 2¹ = 74511298068407 is a prime.

Together with 74511298068407, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (74511298068407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37255649034204 + 37255649034205.

It is an arithmetic number, because the mean of its divisors is an integer number (37255649034205).

Almost surely, 2^{74511298068409} is an apocalyptic number.

It is an amenable number.

74511298068409 is a deficient number, since it is larger than the sum of its proper divisors (1).

74511298068409 is an equidigital number, since it uses as much as digits as its factorization.

74511298068409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34836480, while the sum is 64.

The spelling of 74511298068409 in words is "seventy-four trillion, five hundred eleven billion, two hundred ninety-eight million, sixty-eight thousand, four hundred nine".