6449212171 has 4 divisors (see below), whose sum is σ = 6455456392. Its totient is φ = 6442967952.

The previous prime is 6449212169. The next prime is 6449212223. The reversal of 6449212171 is 1712129446.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6449212171 - 2¹ = 6449212169 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6449212171.

It is not an unprimeable number, because it can be changed into a prime (6449219171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3120561 + ... + 3122626.

It is an arithmetic number, because the mean of its divisors is an integer number (1613864098).

Almost surely, 2^6449212171 is an apocalyptic number.

6449212171 is a deficient number, since it is larger than the sum of its proper divisors (6244221).

6449212171 is a wasteful number, since it uses less digits than its factorization.

6449212171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6244220.

The product of its digits is 24192, while the sum is 37.

The square root of 6449212171 is about 80306.9870621480. The cubic root of 6449212171 is about 1861.3821933173.

The spelling of 6449212171 in words is "six billion, four hundred forty-nine million, two hundred twelve thousand, one hundred seventy-one".