6517539870 has 16 divisors (see below), whose sum is σ = 15642095760. Its totient is φ = 1738010624.

The previous prime is 6517539839. The next prime is 6517539887. The reversal of 6517539870 is 789357156.

It is a congruent number.

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, 108625635 + ... + 108625694.

It is an arithmetic number, because the mean of its divisors is an integer number (977630985).

Almost surely, 2^6517539870 is an apocalyptic number.

6517539870 is an abundant number, since it is smaller than the sum of its proper divisors (9124555890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6517539870 is a wasteful number, since it uses less digits than its factorization.

6517539870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217251339.

The product of its (nonzero) digits is 1587600, while the sum is 51.

The square root of 6517539870 is about 80731.2818553007. The cubic root of 6517539870 is about 1867.9327312704.

The spelling of 6517539870 in words is "six billion, five hundred seventeen million, five hundred thirty-nine thousand, eight hundred seventy".