2144242233533 has 4 divisors (see below), whose sum is σ = 2144750713500. Its totient is φ = 2143733753568.

The previous prime is 2144242233509. The next prime is 2144242233607. The reversal of 2144242233533 is 3353322424412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1967685118564 + 176557114969 = 1402742^2 + 420187^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2144242233533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144242235533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254233658 + ... + 254242091.

It is an arithmetic number, because the mean of its divisors is an integer number (536187678375).

Almost surely, 2^{2144242233533} is an apocalyptic number.

It is an amenable number.

2144242233533 is a deficient number, since it is larger than the sum of its proper divisors (508479967).

2144242233533 is an equidigital number, since it uses as much as digits as its factorization.

2144242233533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508479966.

The product of its digits is 414720, while the sum is 38.

Adding to 2144242233533 its reverse (3353322424412), we get a palindrome (5497564657945).

The spelling of 2144242233533 in words is "two trillion, one hundred forty-four billion, two hundred forty-two million, two hundred thirty-three thousand, five hundred thirty-three".