6439486323 has 4 divisors (see below), whose sum is σ = 8585981768. Its totient is φ = 4292990880.

The previous prime is 6439486301. The next prime is 6439486367. The reversal of 6439486323 is 3236849346.

It is a happy number.

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

It is not a de Polignac number, because 6439486323 - 2⁶ = 6439486259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6439486373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1073247718 + ... + 1073247723.

It is an arithmetic number, because the mean of its divisors is an integer number (2146495442).

Almost surely, 2^6439486323 is an apocalyptic number.

6439486323 is a deficient number, since it is larger than the sum of its proper divisors (2146495445).

6439486323 is a wasteful number, since it uses less digits than its factorization.

6439486323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2146495444.

The product of its digits is 2239488, while the sum is 48.

The square root of 6439486323 is about 80246.4100318513. The cubic root of 6439486323 is about 1860.4460258249.

The spelling of 6439486323 in words is "six billion, four hundred thirty-nine million, four hundred eighty-six thousand, three hundred twenty-three".