2144005421312 has 18 divisors (see below), whose sum is σ = 4279635821958. Its totient is φ = 1072002710528.

The previous prime is 2144005421297. The next prime is 2144005421321. The reversal of 2144005421312 is 2131245004412.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1540736317696 + 603269103616 = 1241264^2 + 776704^2 .

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 as a sum of consecutive naturals, namely, 4187510333 + ... + 4187510844.

Almost surely, 2^{2144005421312} is an apocalyptic number.

It is an amenable number.

2144005421312 is a deficient number, since it is larger than the sum of its proper divisors (2135630400646).

2144005421312 is an frugal number, since it uses more digits than its factorization.

2144005421312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8375021193 (or 8375021179 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The spelling of 2144005421312 in words is "two trillion, one hundred forty-four billion, five million, four hundred twenty-one thousand, three hundred twelve".