56688888887 has 8 divisors (see below), whose sum is σ = 57240598800. Its totient is φ = 56139234624.

The previous prime is 56688888811. The next prime is 56688888899. The reversal of 56688888887 is 78888888665.

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

It is a cyclic number.

It is not a de Polignac number, because 56688888887 - 2⁸ = 56688888631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56682888887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458462 + ... + 568827.

It is an arithmetic number, because the mean of its divisors is an integer number (7155074850).

Almost surely, 2^56688888887 is an apocalyptic number.

56688888887 is a deficient number, since it is larger than the sum of its proper divisors (551709913).

56688888887 is a wasteful number, since it uses less digits than its factorization.

56688888887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027825.

The product of its digits is 2642411520, while the sum is 80.

The spelling of 56688888887 in words is "fifty-six billion, six hundred eighty-eight million, eight hundred eighty-eight thousand, eight hundred eighty-seven".