6448544045 has 8 divisors (see below), whose sum is σ = 8145529440. Its totient is φ = 4887317520.

The previous prime is 6448544021. The next prime is 6448544059. The reversal of 6448544045 is 5404458446.

It is a happy number.

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

It is not a de Polignac number, because 6448544045 - 2⁸ = 6448543789 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6448543987 and 6448544005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33939611 + ... + 33939800.

It is an arithmetic number, because the mean of its divisors is an integer number (1018191180).

Almost surely, 2^6448544045 is an apocalyptic number.

It is an amenable number.

6448544045 is a deficient number, since it is larger than the sum of its proper divisors (1696985395).

6448544045 is a wasteful number, since it uses less digits than its factorization.

6448544045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67879435.

The product of its (nonzero) digits is 1228800, while the sum is 44.

The square root of 6448544045 is about 80302.8271295600. The cubic root of 6448544045 is about 1861.3179125569.

The spelling of 6448544045 in words is "six billion, four hundred forty-eight million, five hundred forty-four thousand, forty-five".