5680781568 has 648 divisors, whose sum is σ = 21374091648. Its totient is φ = 1419264000.

The previous prime is 5680781563. The next prime is 5680781581. The reversal of 5680781568 is 8651870865.

5680781568 is a `hidden beast` number, since 5 + 6 + 8 + 0 + 78 + 1 + 568 = 666.

It is not an unprimeable number, because it can be changed into a prime (5680781563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 80010973 + ... + 80011043.

Almost surely, 2^5680781568 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 5680781568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10687045824).

5680781568 is an abundant number, since it is smaller than the sum of its proper divisors (15693310080).

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

5680781568 is a wasteful number, since it uses less digits than its factorization.

5680781568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 54.

The square root of 5680781568 is about 75370.9597126108. The cubic root of 5680781568 is about 1784.3061135583.

The spelling of 5680781568 in words is "five billion, six hundred eighty million, seven hundred eighty-one thousand, five hundred sixty-eight".