56702784685 has 4 divisors (see below), whose sum is σ = 68043341628. Its totient is φ = 45362227744.

The previous prime is 56702784683. The next prime is 56702784707. The reversal of 56702784685 is 58648720765.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58648720765 = 5 ⋅11729744153.

It can be written as a sum of positive squares in 2 ways, for example, as 43762129636 + 12940655049 = 209194^2 + 113757^2 .

It is a cyclic number.

It is not a de Polignac number, because 56702784685 - 2¹ = 56702784683 is a prime.

It is a super-3 number, since 3×56702784685³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56702784683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5670278464 + ... + 5670278473.

It is an arithmetic number, because the mean of its divisors is an integer number (17010835407).

Almost surely, 2^56702784685 is an apocalyptic number.

It is an amenable number.

56702784685 is a deficient number, since it is larger than the sum of its proper divisors (11340556943).

56702784685 is a wasteful number, since it uses less digits than its factorization.

56702784685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11340556942.

The product of its (nonzero) digits is 22579200, while the sum is 58.

The spelling of 56702784685 in words is "fifty-six billion, seven hundred two million, seven hundred eighty-four thousand, six hundred eighty-five".