4342905440641 has 2 divisors, whose sum is σ = 4342905440642. Its totient is φ = 4342905440640.

The previous prime is 4342905440639. The next prime is 4342905440647. The reversal of 4342905440641 is 1460445092434.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2438516480625 + 1904388960016 = 1561575^2 + 1379996^2 .

It is a cyclic number.

It is not a de Polignac number, because 4342905440641 - 2¹ = 4342905440639 is a prime.

Together with 4342905440639, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 4342905440591 and 4342905440600.

It is not a weakly prime, because it can be changed into another prime (4342905440647) by changing a digit.

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, 2171452720320 + 2171452720321.

It is an arithmetic number, because the mean of its divisors is an integer number (2171452720321).

Almost surely, 2^{4342905440641} is an apocalyptic number.

It is an amenable number.

4342905440641 is a deficient number, since it is larger than the sum of its proper divisors (1).

4342905440641 is an equidigital number, since it uses as much as digits as its factorization.

4342905440641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1658880, while the sum is 46.

The spelling of 4342905440641 in words is "four trillion, three hundred forty-two billion, nine hundred five million, four hundred forty thousand, six hundred forty-one".