6464968810 has 16 divisors (see below), whose sum is σ = 11638485000. Its totient is φ = 2585645056.

The previous prime is 6464968801. The next prime is 6464968831. The reversal of 6464968810 is 188694646.

It can be written as a sum of positive squares in 4 ways, for example, as 3637175481 + 2827793329 = 60309^2 + 53177^2 .

It is a super-2 number, since 2×6464968810² = 83591643428545632200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45066 + ... + 122314.

Almost surely, 2^6464968810 is an apocalyptic number.

6464968810 is a deficient number, since it is larger than the sum of its proper divisors (5173516190).

6464968810 is a wasteful number, since it uses less digits than its factorization.

6464968810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85625.

The product of its (nonzero) digits is 1990656, while the sum is 52.

The square root of 6464968810 is about 80405.0297556067. The cubic root of 6464968810 is about 1862.8968627749.

The spelling of 6464968810 in words is "six billion, four hundred sixty-four million, nine hundred sixty-eight thousand, eight hundred ten".