6449974271 has 8 divisors (see below), whose sum is σ = 6972540960. Its totient is φ = 5931181152.

The previous prime is 6449974241. The next prime is 6449974313. The reversal of 6449974271 is 1724799446.

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

It is not a de Polignac number, because 6449974271 - 2⁶ = 6449974207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6449974241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 939836 + ... + 946673.

It is an arithmetic number, because the mean of its divisors is an integer number (871567620).

Almost surely, 2^6449974271 is an apocalyptic number.

6449974271 is a deficient number, since it is larger than the sum of its proper divisors (522566689).

6449974271 is a wasteful number, since it uses less digits than its factorization.

6449974271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1886785.

The product of its digits is 3048192, while the sum is 53.

The square root of 6449974271 is about 80311.7318391280. The cubic root of 6449974271 is about 1861.4555099467.

The spelling of 6449974271 in words is "six billion, four hundred forty-nine million, nine hundred seventy-four thousand, two hundred seventy-one".