32168933449 has 3 divisors (see below), whose sum is σ = 32169112807. Its totient is φ = 32168754092.

The previous prime is 32168933437. The next prime is 32168933473. The reversal of 32168933449 is 94433986123.

It is a happy number.

The square root of 32168933449 is 179357.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 94433986123 = 541 ⋅174554503.

It can be written as a sum of positive squares in only one way, i.e., 30668765625 + 1500167824 = 175125^2 + 38732^2 .

It is not a de Polignac number, because 32168933449 - 2¹⁷ = 32168802377 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32168933396 and 32168933405.

It is not an unprimeable number, because it can be changed into a prime (32168933429) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 89679 + ... + 269035.

Almost surely, 2^32168933449 is an apocalyptic number.

32168933449 is the 179357-th square number.

32168933449 is the 89679-th centered octagonal number.

It is an amenable number.

32168933449 is a deficient number, since it is larger than the sum of its proper divisors (179358).

32168933449 is an frugal number, since it uses more digits than its factorization.

32168933449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358714 (or 179357 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 52.

The spelling of 32168933449 in words is "thirty-two billion, one hundred sixty-eight million, nine hundred thirty-three thousand, four hundred forty-nine".