74205050217217 has 4 divisors (see below), whose sum is σ = 74205197759536. Its totient is φ = 74204902674900.

The previous prime is 74205050217211. The next prime is 74205050217247. The reversal of 74205050217217 is 71271205050247.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 74205050217217 - 2³⁹ = 73655294403329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74205050217211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73014159 + ... + 74023492.

It is an arithmetic number, because the mean of its divisors is an integer number (18551299439884).

Almost surely, 2^{74205050217217} is an apocalyptic number.

It is an amenable number.

74205050217217 is a deficient number, since it is larger than the sum of its proper divisors (147542319).

74205050217217 is a wasteful number, since it uses less digits than its factorization.

74205050217217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147542318.

The product of its (nonzero) digits is 274400, while the sum is 43.

The spelling of 74205050217217 in words is "seventy-four trillion, two hundred five billion, fifty million, two hundred seventeen thousand, two hundred seventeen".