74564340629 has 2 divisors, whose sum is σ = 74564340630. Its totient is φ = 74564340628.

The previous prime is 74564340607. The next prime is 74564340637. The reversal of 74564340629 is 92604346547.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70343239729 + 4221100900 = 265223^2 + 64970^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74564340629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74564340659) 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, 37282170314 + 37282170315.

It is an arithmetic number, because the mean of its divisors is an integer number (37282170315).

Almost surely, 2^74564340629 is an apocalyptic number.

It is an amenable number.

74564340629 is a deficient number, since it is larger than the sum of its proper divisors (1).

74564340629 is an equidigital number, since it uses as much as digits as its factorization.

74564340629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4354560, while the sum is 50.

The spelling of 74564340629 in words is "seventy-four billion, five hundred sixty-four million, three hundred forty thousand, six hundred twenty-nine".