6464664464426 has 16 divisors (see below), whose sum is σ = 11114219359296. Its totient is φ = 2762586129696.

The previous prime is 6464664464399. The next prime is 6464664464459. The reversal of 6464664464426 is 6244644664646.

It is a super-2 number, since 2×6464664464426² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 665357891 + ... + 665367606.

It is an arithmetic number, because the mean of its divisors is an integer number (694638709956).

Almost surely, 2^{6464664464426} is an apocalyptic number.

6464664464426 is a deficient number, since it is larger than the sum of its proper divisors (4649554894870).

6464664464426 is a wasteful number, since it uses less digits than its factorization.

6464664464426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330725853.

The product of its digits is 382205952, while the sum is 62.

The spelling of 6464664464426 in words is "six trillion, four hundred sixty-four billion, six hundred sixty-four million, four hundred sixty-four thousand, four hundred twenty-six".