56816727385 has 16 divisors (see below), whose sum is σ = 77612100480. Its totient is φ = 39524679040.

The previous prime is 56816727379. The next prime is 56816727389. The reversal of 56816727385 is 58372761865.

It is a happy number.

It is not a de Polignac number, because 56816727385 - 2³ = 56816727377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56816727389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22455940 + ... + 22458469.

It is an arithmetic number, because the mean of its divisors is an integer number (4850756280).

Almost surely, 2^56816727385 is an apocalyptic number.

56816727385 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56816727385 is a deficient number, since it is larger than the sum of its proper divisors (20795373095).

56816727385 is a wasteful number, since it uses less digits than its factorization.

56816727385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44914448.

The product of its digits is 16934400, while the sum is 58.

The spelling of 56816727385 in words is "fifty-six billion, eight hundred sixteen million, seven hundred twenty-seven thousand, three hundred eighty-five".