6445826044 has 12 divisors (see below), whose sum is σ = 12891652144. Its totient is φ = 2762496864.

The previous prime is 6445826041. The next prime is 6445826047. The reversal of 6445826044 is 4406285446.

It is an interprime number because it is at equal distance from previous prime (6445826041) and next prime (6445826047).

6445826044 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6445826041) 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 3 ways as a sum of consecutive naturals, for example, 115104009 + ... + 115104064.

Almost surely, 2^6445826044 is an apocalyptic number.

It is an amenable number.

6445826044 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6445826044 is a wasteful number, since it uses less digits than its factorization.

6445826044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230208084 (or 230208082 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 43.

The square root of 6445826044 is about 80285.9019006450. The cubic root of 6445826044 is about 1861.0563664434.

The spelling of 6445826044 in words is "six billion, four hundred forty-five million, eight hundred twenty-six thousand, forty-four".