217480528579 has 8 divisors (see below), whose sum is σ = 221244288912. Its totient is φ = 213737973120.

The previous prime is 217480528553. The next prime is 217480528637. The reversal of 217480528579 is 975825084712.

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

It is not a de Polignac number, because 217480528579 - 2¹⁷ = 217480397507 is a prime.

It is a super-2 number, since 2×217480528579² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (217480528079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5280529 + ... + 5321554.

It is an arithmetic number, because the mean of its divisors is an integer number (27655536114).

Almost surely, 2^217480528579 is an apocalyptic number.

217480528579 is a deficient number, since it is larger than the sum of its proper divisors (3763760333).

217480528579 is a wasteful number, since it uses less digits than its factorization.

217480528579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10602437.

The product of its (nonzero) digits is 11289600, while the sum is 58.

The spelling of 217480528579 in words is "two hundred seventeen billion, four hundred eighty million, five hundred twenty-eight thousand, five hundred seventy-nine".