6500726500 has 48 divisors (see below), whose sum is σ = 14944849920. Its totient is φ = 2463429600.

The previous prime is 6500726497. The next prime is 6500726549. The reversal of 6500726500 is 56270056.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332644 + ... + 351643.

It is an arithmetic number, because the mean of its divisors is an integer number (311351040).

Almost surely, 2^6500726500 is an apocalyptic number.

It is an amenable number.

6500726500 is an abundant number, since it is smaller than the sum of its proper divisors (8444123420).

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

6500726500 is a wasteful number, since it uses less digits than its factorization.

6500726500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684325 (or 684313 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 6500726500 is about 80627.0829188307. The cubic root of 6500726500 is about 1866.3251058018.

Adding to 6500726500 its reverse (56270056), we get a palindrome (6556996556).

The spelling of 6500726500 in words is "six billion, five hundred million, seven hundred twenty-six thousand, five hundred".