6684500461 has 4 divisors (see below), whose sum is σ = 6699000924. Its totient is φ = 6670000000.

The previous prime is 6684500437. The next prime is 6684500507. The reversal of 6684500461 is 1640054866.

It is a happy number.

6684500461 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1640054866 = 2 ⋅820027433.

It can be written as a sum of positive squares in 2 ways, for example, as 4841515561 + 1842984900 = 69581^2 + 42930^2 .

It is a cyclic number.

It is not a de Polignac number, because 6684500461 - 2⁵ = 6684500429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6684500161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7249540 + ... + 7250461.

It is an arithmetic number, because the mean of its divisors is an integer number (1674750231).

Almost surely, 2^6684500461 is an apocalyptic number.

It is an amenable number.

6684500461 is a deficient number, since it is larger than the sum of its proper divisors (14500463).

6684500461 is a wasteful number, since it uses less digits than its factorization.

6684500461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14500462.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 6684500461 is about 81758.7943954655. The cubic root of 6684500461 is about 1883.7487878266.

The spelling of 6684500461 in words is "six billion, six hundred eighty-four million, five hundred thousand, four hundred sixty-one".