6464886246 has 72 divisors (see below), whose sum is σ = 17547579504. Its totient is φ = 1705021920.

The previous prime is 6464886229. The next prime is 6464886251. The reversal of 6464886246 is 6426884646.

6464886246 is a `hidden beast` number, since 6 + 4 + 6 + 4 + 8 + 8 + 624 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 6464886192 and 6464886201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 270450 + ... + 293381.

It is an arithmetic number, because the mean of its divisors is an integer number (243716382).

Almost surely, 2^6464886246 is an apocalyptic number.

6464886246 is an abundant number, since it is smaller than the sum of its proper divisors (11082693258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6464886246 is a wasteful number, since it uses less digits than its factorization.

6464886246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563866 (or 563856 counting only the distinct ones).

The product of its digits is 10616832, while the sum is 54.

The square root of 6464886246 is about 80404.5163283755. The cubic root of 6464886246 is about 1862.8889324004. Note that the first 3 decimals are identical.

The spelling of 6464886246 in words is "six billion, four hundred sixty-four million, eight hundred eighty-six thousand, two hundred forty-six".