56783656568 has 8 divisors (see below), whose sum is σ = 106469356080. Its totient is φ = 28391828280.

The previous prime is 56783656549. The next prime is 56783656583. The reversal of 56783656568 is 86565638765.

56783656568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3548978528 + ... + 3548978543.

It is an arithmetic number, because the mean of its divisors is an integer number (13308669510).

Almost surely, 2^56783656568 is an apocalyptic number.

It is an amenable number.

56783656568 is a deficient number, since it is larger than the sum of its proper divisors (49685699512).

56783656568 is a wasteful number, since it uses less digits than its factorization.

56783656568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7097957077 (or 7097957073 counting only the distinct ones).

The product of its digits is 217728000, while the sum is 65.

The spelling of 56783656568 in words is "fifty-six billion, seven hundred eighty-three million, six hundred fifty-six thousand, five hundred sixty-eight".