64693824808 has 16 divisors (see below), whose sum is σ = 121404526560. Its totient is φ = 32319284400.

The previous prime is 64693824773. The next prime is 64693824817. The reversal of 64693824808 is 80842839646.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3443548 + ... + 3462283.

It is an arithmetic number, because the mean of its divisors is an integer number (7587782910).

Almost surely, 2^64693824808 is an apocalyptic number.

It is an amenable number.

64693824808 is a deficient number, since it is larger than the sum of its proper divisors (56710701752).

64693824808 is a wasteful number, since it uses less digits than its factorization.

64693824808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6907008 (or 6907004 counting only the distinct ones).

The product of its (nonzero) digits is 15925248, while the sum is 58.

The spelling of 64693824808 in words is "sixty-four billion, six hundred ninety-three million, eight hundred twenty-four thousand, eight hundred eight".