6468584642 has 8 divisors (see below), whose sum is σ = 10449252156. Its totient is φ = 2985500592.

The previous prime is 6468584641. The next prime is 6468584669. The reversal of 6468584642 is 2464858646.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6457568881 + 11015761 = 80359^2 + 3319^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (6468584641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124395833 + ... + 124395884.

Almost surely, 2^6468584642 is an apocalyptic number.

6468584642 is a deficient number, since it is larger than the sum of its proper divisors (3980667514).

6468584642 is a wasteful number, since it uses less digits than its factorization.

6468584642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248791732.

The product of its digits is 8847360, while the sum is 53.

The square root of 6468584642 is about 80427.5117232903. The cubic root of 6468584642 is about 1863.2441017117.

The spelling of 6468584642 in words is "six billion, four hundred sixty-eight million, five hundred eighty-four thousand, six hundred forty-two".