2168321040484 has 27 divisors (see below), whose sum is σ = 3860275847827. Its totient is φ = 1065699511928.

The previous prime is 2168321040469. The next prime is 2168321040493. The reversal of 2168321040484 is 4840401238612.

The square root of 2168321040484 is 1472522.

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

It is a super-2 number, since 2×2168321040484² (a number of 25 digits) contains 22 as substring.

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 2168321040484.

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 8 ways as a sum of consecutive naturals, for example, 173751357 + ... + 173763835.

Almost surely, 2^{2168321040484} is an apocalyptic number.

2168321040484 is the 1472522-nd square number.

It is an amenable number.

2168321040484 is a deficient number, since it is larger than the sum of its proper divisors (1691954807343).

2168321040484 is an frugal number, since it uses more digits than its factorization.

2168321040484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25080 (or 12540 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 43.

The spelling of 2168321040484 in words is "two trillion, one hundred sixty-eight billion, three hundred twenty-one million, forty thousand, four hundred eighty-four".