6444751832 has 16 divisors (see below), whose sum is σ = 12165012000. Its totient is φ = 3200748640.

The previous prime is 6444751811. The next prime is 6444751837. The reversal of 6444751832 is 2381574446.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6444751837) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2702144 + ... + 2704527.

It is an arithmetic number, because the mean of its divisors is an integer number (760313250).

Almost surely, 2^6444751832 is an apocalyptic number.

It is an amenable number.

6444751832 is a deficient number, since it is larger than the sum of its proper divisors (5720260168).

6444751832 is a wasteful number, since it uses less digits than its factorization.

6444751832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5406826 (or 5406822 counting only the distinct ones).

The product of its digits is 645120, while the sum is 44.

The square root of 6444751832 is about 80279.2117051482. The cubic root of 6444751832 is about 1860.9529775665.

The spelling of 6444751832 in words is "six billion, four hundred forty-four million, seven hundred fifty-one thousand, eight hundred thirty-two".