344241545521 has 2 divisors, whose sum is σ = 344241545522. Its totient is φ = 344241545520.

The previous prime is 344241545519. The next prime is 344241545533. The reversal of 344241545521 is 125545142443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 253814440000 + 90427105521 = 503800^2 + 300711^2 .

It is a cyclic number.

It is not a de Polignac number, because 344241545521 - 2¹ = 344241545519 is a prime.

It is a super-2 number, since 2×344241545521² (a number of 24 digits) contains 22 as substring.

Together with 344241545519, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (344241545551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172120772760 + 172120772761.

It is an arithmetic number, because the mean of its divisors is an integer number (172120772761).

Almost surely, 2^344241545521 is an apocalyptic number.

It is an amenable number.

344241545521 is a deficient number, since it is larger than the sum of its proper divisors (1).

344241545521 is an equidigital number, since it uses as much as digits as its factorization.

344241545521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 384000, while the sum is 40.

Adding to 344241545521 its reverse (125545142443), we get a palindrome (469786687964).

The spelling of 344241545521 in words is "three hundred forty-four billion, two hundred forty-one million, five hundred forty-five thousand, five hundred twenty-one".