648063283378684 has 96 divisors (see below), whose sum is σ = 1254803946905600. Its totient is φ = 291693871872000.

The previous prime is 648063283378669. The next prime is 648063283378727. The reversal of 648063283378684 is 486873382360846.

It is a Harshad number since it is a multiple of its sum of digits (76).

It is a self number, because there is not a number n which added to its sum of digits gives 648063283378684.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24069964 + ... + 43306924.

Almost surely, 2^{648063283378684} is an apocalyptic number.

It is an amenable number.

648063283378684 is a deficient number, since it is larger than the sum of its proper divisors (606740663526916).

648063283378684 is a wasteful number, since it uses less digits than its factorization.

648063283378684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19237275 (or 19237273 counting only the distinct ones).

The product of its (nonzero) digits is 5350883328, while the sum is 76.

The spelling of 648063283378684 in words is "six hundred forty-eight trillion, sixty-three billion, two hundred eighty-three million, three hundred seventy-eight thousand, six hundred eighty-four".