5639944499365 has 24 divisors (see below), whose sum is σ = 7440108047064. Its totient is φ = 4101240422400.

The previous prime is 5639944499353. The next prime is 5639944499389.

5639944499365 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 2121165042084 + 3518779457281 = 1456422^2 + 1875841^2 .

It is not a de Polignac number, because 5639944499365 - 2⁷ = 5639944499237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5639944499291 and 5639944499300.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4040169 + ... + 5253841.

It is an arithmetic number, because the mean of its divisors is an integer number (310004501961).

Almost surely, 2^{5639944499365} is an apocalyptic number.

5639944499365 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5639944499365 is a deficient number, since it is larger than the sum of its proper divisors (1800163547699).

5639944499365 is a wasteful number, since it uses less digits than its factorization.

5639944499365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221381 (or 1221370 counting only the distinct ones).

The product of its digits is 3401222400, while the sum is 76.

The spelling of 5639944499365 in words is "five trillion, six hundred thirty-nine billion, nine hundred forty-four million, four hundred ninety-nine thousand, three hundred sixty-five".