217485532932 has 24 divisors (see below), whose sum is σ = 508233987072. Its totient is φ = 72385500000.

The previous prime is 217485532919. The next prime is 217485532933. The reversal of 217485532932 is 239235584712.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (217485532933) 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, 13701444 + ... + 13717307.

It is an arithmetic number, because the mean of its divisors is an integer number (21176416128).

Almost surely, 2^217485532932 is an apocalyptic number.

It is an amenable number.

217485532932 is an abundant number, since it is smaller than the sum of its proper divisors (290748454140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

217485532932 is a wasteful number, since it uses less digits than its factorization.

217485532932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27419419 (or 27419417 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 51.

The spelling of 217485532932 in words is "two hundred seventeen billion, four hundred eighty-five million, five hundred thirty-two thousand, nine hundred thirty-two".