74065135120643 has 16 divisors (see below), whose sum is σ = 74409206256000. Its totient is φ = 73721895690240.

The previous prime is 74065135120637. The next prime is 74065135120651. The reversal of 74065135120643 is 34602153156047.

It is a cyclic number.

It is not a de Polignac number, because 74065135120643 - 2⁸ = 74065135120387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74065135120673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3349988273 + ... + 3350010381.

It is an arithmetic number, because the mean of its divisors is an integer number (4650575391000).

Almost surely, 2^{74065135120643} is an apocalyptic number.

74065135120643 is a deficient number, since it is larger than the sum of its proper divisors (344071135357).

74065135120643 is a wasteful number, since it uses less digits than its factorization.

74065135120643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40222.

The product of its (nonzero) digits is 1814400, while the sum is 47.

The spelling of 74065135120643 in words is "seventy-four trillion, sixty-five billion, one hundred thirty-five million, one hundred twenty thousand, six hundred forty-three".