5999864089444 has 27 divisors (see below), whose sum is σ = 11153881404057. Its totient is φ = 2823426262464.

The previous prime is 5999864089421. The next prime is 5999864089447. The reversal of 5999864089444 is 4449804689995.

The square root of 5999864089444 is 2449462.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4671174464100 + 1328689625344 = 2161290^2 + 1152688^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5999864089447) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 83245687 + ... + 83317729.

Almost surely, 2^{5999864089444} is an apocalyptic number.

5999864089444 is the 2449462-nd square number.

It is an amenable number.

5999864089444 is a deficient number, since it is larger than the sum of its proper divisors (5154017314613).

5999864089444 is an frugal number, since it uses more digits than its factorization.

5999864089444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144124 (or 72062 counting only the distinct ones).

The product of its (nonzero) digits is 3224862720, while the sum is 79.

The spelling of 5999864089444 in words is "five trillion, nine hundred ninety-nine billion, eight hundred sixty-four million, eighty-nine thousand, four hundred forty-four".