2705440501321 has 2 divisors, whose sum is σ = 2705440501322. Its totient is φ = 2705440501320.

The previous prime is 2705440501319. The next prime is 2705440501343. The reversal of 2705440501321 is 1231050445072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2436287061321 + 269153440000 = 1560861^2 + 518800^2 .

It is a cyclic number.

It is not a de Polignac number, because 2705440501321 - 2¹ = 2705440501319 is a prime.

Together with 2705440501319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2705440501921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1352720250660 + 1352720250661.

It is an arithmetic number, because the mean of its divisors is an integer number (1352720250661).

Almost surely, 2^{2705440501321} is an apocalyptic number.

It is an amenable number.

2705440501321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2705440501321 is an equidigital number, since it uses as much as digits as its factorization.

2705440501321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33600, while the sum is 34.

Adding to 2705440501321 its reverse (1231050445072), we get a palindrome (3936490946393).

The spelling of 2705440501321 in words is "two trillion, seven hundred five billion, four hundred forty million, five hundred one thousand, three hundred twenty-one".