6468195464 has 8 divisors (see below), whose sum is σ = 12127866510. Its totient is φ = 3234097728.

The previous prime is 6468195443. The next prime is 6468195469. The reversal of 6468195464 is 4645918646.

It can be written as a sum of positive squares in only one way, i.e., 6465768100 + 2427364 = 80410^2 + 1558^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (6468195469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404262209 + ... + 404262224.

Almost surely, 2^6468195464 is an apocalyptic number.

It is an amenable number.

6468195464 is a deficient number, since it is larger than the sum of its proper divisors (5659671046).

6468195464 is a wasteful number, since it uses less digits than its factorization.

6468195464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808524439 (or 808524435 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 53.

The square root of 6468195464 is about 80425.0922535996. The cubic root of 6468195464 is about 1863.2067340238.

The spelling of 6468195464 in words is "six billion, four hundred sixty-eight million, one hundred ninety-five thousand, four hundred sixty-four".