56836863865 has 8 divisors (see below), whose sum is σ = 68209308360. Its totient is φ = 45466109952.

The previous prime is 56836863799. The next prime is 56836863877.

It is a happy number.

56836863865 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 4792654441 + 52044209424 = 69229^2 + 228132^2 .

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 56836863865 - 2²¹ = 56834766713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56836863797 and 56836863806.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347464 + ... + 484153.

It is an arithmetic number, because the mean of its divisors is an integer number (8526163545).

Almost surely, 2^56836863865 is an apocalyptic number.

It is an amenable number.

56836863865 is a deficient number, since it is larger than the sum of its proper divisors (11372444495).

56836863865 is a wasteful number, since it uses less digits than its factorization.

56836863865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845291.

The product of its digits is 149299200, while the sum is 64.

The spelling of 56836863865 in words is "fifty-six billion, eight hundred thirty-six million, eight hundred sixty-three thousand, eight hundred sixty-five".