56893639865 has 16 divisors (see below), whose sum is σ = 69055955136. Its totient is φ = 44993928000.

The previous prime is 56893639861. The next prime is 56893639867.

56893639865 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 56893639865 - 2² = 56893639861 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56893639795 and 56893639804.

It is not an unprimeable number, because it can be changed into a prime (56893639861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237110 + ... + 412320.

It is an arithmetic number, because the mean of its divisors is an integer number (4315997196).

Almost surely, 2^56893639865 is an apocalyptic number.

It is an amenable number.

56893639865 is a deficient number, since it is larger than the sum of its proper divisors (12162315271).

56893639865 is a wasteful number, since it uses less digits than its factorization.

56893639865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175960.

The product of its digits is 251942400, while the sum is 68.

The spelling of 56893639865 in words is "fifty-six billion, eight hundred ninety-three million, six hundred thirty-nine thousand, eight hundred sixty-five".