74061285409 has 2 divisors, whose sum is σ = 74061285410. Its totient is φ = 74061285408.

The previous prime is 74061285407. The next prime is 74061285469. The reversal of 74061285409 is 90458216047.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71090490384 + 2970795025 = 266628^2 + 54505^2 .

It is a cyclic number.

It is not a de Polignac number, because 74061285409 - 2¹ = 74061285407 is a prime.

Together with 74061285407, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (74061285407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37030642704 + 37030642705.

It is an arithmetic number, because the mean of its divisors is an integer number (37030642705).

Almost surely, 2^74061285409 is an apocalyptic number.

It is an amenable number.

74061285409 is a deficient number, since it is larger than the sum of its proper divisors (1).

74061285409 is an equidigital number, since it uses as much as digits as its factorization.

74061285409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 74061285409 in words is "seventy-four billion, sixty-one million, two hundred eighty-five thousand, four hundred nine".