2144243535025 has 6 divisors (see below), whose sum is σ = 2658861983462. Its totient is φ = 1715394828000.

The previous prime is 2144243535013. The next prime is 2144243535041. The reversal of 2144243535025 is 5205353424412.

It can be written as a sum of positive squares in 3 ways, for example, as 380223924129 + 1764019610896 = 616623^2 + 1328164^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2144243535025 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42884870676 + ... + 42884870725.

Almost surely, 2^{2144243535025} is an apocalyptic number.

2144243535025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2144243535025 is a deficient number, since it is larger than the sum of its proper divisors (514618448437).

2144243535025 is an equidigital number, since it uses as much as digits as its factorization.

2144243535025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85769741411 (or 85769741406 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 40.

Adding to 2144243535025 its reverse (5205353424412), we get a palindrome (7349596959437).

The spelling of 2144243535025 in words is "two trillion, one hundred forty-four billion, two hundred forty-three million, five hundred thirty-five thousand, twenty-five".