56783328766 has 8 divisors (see below), whose sum is σ = 85176657360. Its totient is φ = 28391109648.

The previous prime is 56783328761. The next prime is 56783328779. The reversal of 56783328766 is 66782338765.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56783328761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134751 + ... + 362938.

It is an arithmetic number, because the mean of its divisors is an integer number (10647082170).

Almost surely, 2^56783328766 is an apocalyptic number.

56783328766 is a deficient number, since it is larger than the sum of its proper divisors (28393328594).

56783328766 is a wasteful number, since it uses less digits than its factorization.

56783328766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554738.

The product of its digits is 60963840, while the sum is 61.

Subtracting 56783328766 from its reverse (66782338765), we obtain a palindrome (9999009999).

The spelling of 56783328766 in words is "fifty-six billion, seven hundred eighty-three million, three hundred twenty-eight thousand, seven hundred sixty-six".