417542509217 has 8 divisors (see below), whose sum is σ = 418313026560. Its totient is φ = 416772130320.

The previous prime is 417542509141. The next prime is 417542509249. The reversal of 417542509217 is 712905245714.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-417542509217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (417542509277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7499759 + ... + 7555227.

It is an arithmetic number, because the mean of its divisors is an integer number (52289128320).

Almost surely, 2^417542509217 is an apocalyptic number.

It is an amenable number.

417542509217 is a deficient number, since it is larger than the sum of its proper divisors (770517343).

417542509217 is a wasteful number, since it uses less digits than its factorization.

417542509217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69223.

The product of its (nonzero) digits is 705600, while the sum is 47.

The spelling of 417542509217 in words is "four hundred seventeen billion, five hundred forty-two million, five hundred nine thousand, two hundred seventeen".