6488945839 has 4 divisors (see below), whose sum is σ = 6516096480. Its totient is φ = 6461795200.

The previous prime is 6488945807. The next prime is 6488945851. The reversal of 6488945839 is 9385498846.

6488945839 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6488945839 - 2⁵ = 6488945807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6488942839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13574962 + ... + 13575439.

It is an arithmetic number, because the mean of its divisors is an integer number (1629024120).

Almost surely, 2^6488945839 is an apocalyptic number.

6488945839 is a deficient number, since it is larger than the sum of its proper divisors (27150641).

6488945839 is a wasteful number, since it uses less digits than its factorization.

6488945839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27150640.

The product of its digits is 59719680, while the sum is 64.

The square root of 6488945839 is about 80553.9933150430. The cubic root of 6488945839 is about 1865.1970350566.

The spelling of 6488945839 in words is "six billion, four hundred eighty-eight million, nine hundred forty-five thousand, eight hundred thirty-nine".