74327861717 has 2 divisors, whose sum is σ = 74327861718. Its totient is φ = 74327861716.

The previous prime is 74327861693. The next prime is 74327861761. The reversal of 74327861717 is 71716872347.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67364126116 + 6963735601 = 259546^2 + 83449^2 .

It is a cyclic number.

It is not a de Polignac number, because 74327861717 - 2⁶ = 74327861653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74327861317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37163930858 + 37163930859.

It is an arithmetic number, because the mean of its divisors is an integer number (37163930859).

Almost surely, 2^74327861717 is an apocalyptic number.

It is an amenable number.

74327861717 is a deficient number, since it is larger than the sum of its proper divisors (1).

74327861717 is an equidigital number, since it uses as much as digits as its factorization.

74327861717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2765952, while the sum is 53.

The spelling of 74327861717 in words is "seventy-four billion, three hundred twenty-seven million, eight hundred sixty-one thousand, seven hundred seventeen".