6539009356 has 24 divisors (see below), whose sum is σ = 12485796624. Its totient is φ = 2971745280.

The previous prime is 6539009339. The next prime is 6539009363.

It is a happy number.

6539009356 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342396 + ... + 360988.

It is an arithmetic number, because the mean of its divisors is an integer number (520241526).

Almost surely, 2^6539009356 is an apocalyptic number.

It is an amenable number.

6539009356 is a deficient number, since it is larger than the sum of its proper divisors (5946787268).

6539009356 is a wasteful number, since it uses less digits than its factorization.

6539009356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26601 (or 26599 counting only the distinct ones).

The product of its (nonzero) digits is 656100, while the sum is 46.

The square root of 6539009356 is about 80864.1413483133. The cubic root of 6539009356 is about 1869.9815411830.

The spelling of 6539009356 in words is "six billion, five hundred thirty-nine million, nine thousand, three hundred fifty-six".