56679006779 has 4 divisors (see below), whose sum is σ = 56685725184. Its totient is φ = 56672288376.

The previous prime is 56679006773. The next prime is 56679006851. The reversal of 56679006779 is 97760097665.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56679006779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56679006773) 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, 3346532 + ... + 3363425.

It is an arithmetic number, because the mean of its divisors is an integer number (14171431296).

Almost surely, 2^56679006779 is an apocalyptic number.

56679006779 is a deficient number, since it is larger than the sum of its proper divisors (6718405).

56679006779 is an equidigital number, since it uses as much as digits as its factorization.

56679006779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6718404.

The product of its (nonzero) digits is 30005640, while the sum is 62.

The spelling of 56679006779 in words is "fifty-six billion, six hundred seventy-nine million, six thousand, seven hundred seventy-nine".