6449332670 has 72 divisors (see below), whose sum is σ = 13555565352. Its totient is φ = 2207138560.

The previous prime is 6449332663. The next prime is 6449332691. The reversal of 6449332670 is 762339446.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 340469 + ... + 358911.

It is an arithmetic number, because the mean of its divisors is an integer number (188271741).

Almost surely, 2^6449332670 is an apocalyptic number.

6449332670 is an abundant number, since it is smaller than the sum of its proper divisors (7106232682).

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

6449332670 is a wasteful number, since it uses less digits than its factorization.

6449332670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18506 (or 18478 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 44.

The square root of 6449332670 is about 80307.7372984696. The cubic root of 6449332670 is about 1861.3937861181.

The spelling of 6449332670 in words is "six billion, four hundred forty-nine million, three hundred thirty-two thousand, six hundred seventy".