6439003475 has 6 divisors (see below), whose sum is σ = 7984364340. Its totient is φ = 5151202760.

The previous prime is 6439003447. The next prime is 6439003517. The reversal of 6439003475 is 5743009346.

6439003475 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 6439003475 - 2²⁶ = 6371894611 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 128780045 + ... + 128780094.

It is an arithmetic number, because the mean of its divisors is an integer number (1330727390).

Almost surely, 2^6439003475 is an apocalyptic number.

6439003475 is a deficient number, since it is larger than the sum of its proper divisors (1545360865).

6439003475 is a wasteful number, since it uses less digits than its factorization.

6439003475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257560149 (or 257560144 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 41.

The square root of 6439003475 is about 80243.4014421124. The cubic root of 6439003475 is about 1860.3995244400.

The spelling of 6439003475 in words is "six billion, four hundred thirty-nine million, three thousand, four hundred seventy-five".