6485684650 has 12 divisors (see below), whose sum is σ = 12063373542. Its totient is φ = 2594273840.

The previous prime is 6485684627. The next prime is 6485684669. The reversal of 6485684650 is 564865846.

It can be written as a sum of positive squares in 3 ways, for example, as 4712685201 + 1772999449 = 68649^2 + 42107^2 .

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, 64856797 + ... + 64856896.

Almost surely, 2^6485684650 is an apocalyptic number.

6485684650 is a deficient number, since it is larger than the sum of its proper divisors (5577688892).

6485684650 is a wasteful number, since it uses less digits than its factorization.

6485684650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129713705 (or 129713700 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 52.

The square root of 6485684650 is about 80533.7485157620. The cubic root of 6485684650 is about 1864.8845148873.

The spelling of 6485684650 in words is "six billion, four hundred eighty-five million, six hundred eighty-four thousand, six hundred fifty".