56779380712785 has 16 divisors (see below), whose sum is σ = 90847281925440. Its totient is φ = 30282245451840.

The previous prime is 56779380712783. The next prime is 56779380712841. The reversal of 56779380712785 is 58721708397765.

It is not a de Polignac number, because 56779380712785 - 2¹ = 56779380712783 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56779380712783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360150 + ... + 10662479.

It is an arithmetic number, because the mean of its divisors is an integer number (5677955120340).

Almost surely, 2^{56779380712785} is an apocalyptic number.

It is an amenable number.

56779380712785 is a deficient number, since it is larger than the sum of its proper divisors (34067901212655).

56779380712785 is a wasteful number, since it uses less digits than its factorization.

56779380712785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11366048.

The product of its (nonzero) digits is 1244678400, while the sum is 75.

The spelling of 56779380712785 in words is "fifty-six trillion, seven hundred seventy-nine billion, three hundred eighty million, seven hundred twelve thousand, seven hundred eighty-five".