217232473299 has 32 divisors (see below), whose sum is σ = 304020642816. Its totient is φ = 137809670400.

The previous prime is 217232473291. The next prime is 217232473303. The reversal of 217232473299 is 992374232712.

It is not a de Polignac number, because 217232473299 - 2³ = 217232473291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (217232473291) 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 31 ways as a sum of consecutive naturals, for example, 7555519 + ... + 7584215.

It is an arithmetic number, because the mean of its divisors is an integer number (9500645088).

Almost surely, 2^217232473299 is an apocalyptic number.

217232473299 is a deficient number, since it is larger than the sum of its proper divisors (86788169517).

217232473299 is a wasteful number, since it uses less digits than its factorization.

217232473299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30235.

The product of its digits is 2286144, while the sum is 51.

The spelling of 217232473299 in words is "two hundred seventeen billion, two hundred thirty-two million, four hundred seventy-three thousand, two hundred ninety-nine".