647369330064 has 40 divisors (see below), whose sum is σ = 1672507036032. Its totient is φ = 215772193920.

The previous prime is 647369330039. The next prime is 647369330071. The reversal of 647369330064 is 460033963746.

It is a junction number, because it is equal to n+sod(n) for n = 647369329989 and 647369330016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52569 + ... + 1139079.

Almost surely, 2^647369330064 is an apocalyptic number.

It is an amenable number.

647369330064 is an abundant number, since it is smaller than the sum of its proper divisors (1025137705968).

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

647369330064 is a wasteful number, since it uses less digits than its factorization.

647369330064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098935 (or 1098929 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 51.

The spelling of 647369330064 in words is "six hundred forty-seven billion, three hundred sixty-nine million, three hundred thirty thousand, sixty-four".