6539712272 has 40 divisors (see below), whose sum is σ = 12889175040. Its totient is φ = 3213849600.

The previous prime is 6539712247. The next prime is 6539712281. The reversal of 6539712272 is 2722179356.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270272 + ... + 293472.

It is an arithmetic number, because the mean of its divisors is an integer number (322229376).

Almost surely, 2^6539712272 is an apocalyptic number.

It is an amenable number.

6539712272 is a deficient number, since it is larger than the sum of its proper divisors (6349462768).

6539712272 is a wasteful number, since it uses less digits than its factorization.

6539712272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23511 (or 23505 counting only the distinct ones).

The product of its digits is 317520, while the sum is 44.

The square root of 6539712272 is about 80868.4875090415. The cubic root of 6539712272 is about 1870.0485438321.

The spelling of 6539712272 in words is "six billion, five hundred thirty-nine million, seven hundred twelve thousand, two hundred seventy-two".