6728444445 has 32 divisors (see below), whose sum is σ = 11697684480. Its totient is φ = 3289965120.

The previous prime is 6728444389. The next prime is 6728444447. The reversal of 6728444445 is 5444448276.

6728444445 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6728444445 - 2¹⁷ = 6728313373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6728444394 and 6728444403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6728444447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 371949 + ... + 389618.

It is an arithmetic number, because the mean of its divisors is an integer number (365552640).

Almost surely, 2^6728444445 is an apocalyptic number.

It is an amenable number.

6728444445 is a deficient number, since it is larger than the sum of its proper divisors (4969240035).

6728444445 is a wasteful number, since it uses less digits than its factorization.

6728444445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761625.

The product of its digits is 3440640, while the sum is 48.

The square root of 6728444445 is about 82027.0957976692. The cubic root of 6728444445 is about 1887.8677038699.

The spelling of 6728444445 in words is "six billion, seven hundred twenty-eight million, four hundred forty-four thousand, four hundred forty-five".