648514424448 has 192 divisors, whose sum is σ = 2074233264480. Its totient is φ = 192811407360.

The previous prime is 648514424399. The next prime is 648514424473. The reversal of 648514424448 is 844424415846.

648514424448 is a `hidden beast` number, since 6 + 4 + 8 + 514 + 42 + 44 + 48 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a junction number, because it is equal to n+sod(n) for n = 648514424394 and 648514424403.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 188815 + ... + 1154417.

Almost surely, 2^648514424448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 648514424448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1037116632240).

648514424448 is an abundant number, since it is smaller than the sum of its proper divisors (1425718840032).

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

648514424448 is a wasteful number, since it uses less digits than its factorization.

648514424448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965687 (or 965672 counting only the distinct ones).

The product of its digits is 15728640, while the sum is 54.

The spelling of 648514424448 in words is "six hundred forty-eight billion, five hundred fourteen million, four hundred twenty-four thousand, four hundred forty-eight".