56383638365 has 8 divisors (see below), whose sum is σ = 67663480248. Its totient is φ = 45104834560.

The previous prime is 56383638317. The next prime is 56383638371.

56383638365 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 298978681 + 56084659684 = 17291^2 + 236822^2 .

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

It is not a de Polignac number, because 56383638365 - 2⁶ = 56383638301 is a prime.

It is a super-2 number, since 2×56383638365² (a number of 22 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56383638365.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 134552 + ... + 361761.

It is an arithmetic number, because the mean of its divisors is an integer number (8457935031).

Almost surely, 2^56383638365 is an apocalyptic number.

It is an amenable number.

56383638365 is a deficient number, since it is larger than the sum of its proper divisors (11279841883).

56383638365 is a wasteful number, since it uses less digits than its factorization.

56383638365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519039.

The product of its digits is 27993600, while the sum is 56.

The spelling of 56383638365 in words is "fifty-six billion, three hundred eighty-three million, six hundred thirty-eight thousand, three hundred sixty-five".