74043313663 has 32 divisors (see below), whose sum is σ = 86126976000. Its totient is φ = 62908446720.

The previous prime is 74043313649. The next prime is 74043313681. The reversal of 74043313663 is 36631334047.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 74043313663 - 2²¹ = 74041216511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74043313613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34777383 + ... + 34779511.

It is an arithmetic number, because the mean of its divisors is an integer number (2691468000).

Almost surely, 2^74043313663 is an apocalyptic number.

74043313663 is a deficient number, since it is larger than the sum of its proper divisors (12083662337).

74043313663 is a wasteful number, since it uses less digits than its factorization.

74043313663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3375.

The product of its (nonzero) digits is 326592, while the sum is 40.

The spelling of 74043313663 in words is "seventy-four billion, forty-three million, three hundred thirteen thousand, six hundred sixty-three".