56387633678365 has 16 divisors (see below), whose sum is σ = 73853391767616. Its totient is φ = 40988714166400.

The previous prime is 56387633678339. The next prime is 56387633678449.

56387633678365 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 56387633678365 - 2²¹ = 56387631581213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56387633678291 and 56387633678300.

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 15 ways as a sum of consecutive naturals, for example, 255813376 + ... + 256033705.

It is an arithmetic number, because the mean of its divisors is an integer number (4615836985476).

Almost surely, 2^{56387633678365} is an apocalyptic number.

56387633678365 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56387633678365 is a deficient number, since it is larger than the sum of its proper divisors (17465758089251).

56387633678365 is a wasteful number, since it uses less digits than its factorization.

56387633678365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511849100.

The product of its digits is 8230118400, while the sum is 76.

The spelling of 56387633678365 in words is "fifty-six trillion, three hundred eighty-seven billion, six hundred thirty-three million, six hundred seventy-eight thousand, three hundred sixty-five".