405344055443 has 2 divisors, whose sum is σ = 405344055444. Its totient is φ = 405344055442.

The previous prime is 405344055419. The next prime is 405344055481. The reversal of 405344055443 is 344550443504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 405344055443 - 2²⁴ = 405327278227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 405344055443.

It is not a weakly prime, because it can be changed into another prime (405344055043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202672027721 + 202672027722.

It is an arithmetic number, because the mean of its divisors is an integer number (202672027722).

Almost surely, 2^405344055443 is an apocalyptic number.

405344055443 is a deficient number, since it is larger than the sum of its proper divisors (1).

405344055443 is an equidigital number, since it uses as much as digits as its factorization.

405344055443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152000, while the sum is 41.

Adding to 405344055443 its reverse (344550443504), we get a palindrome (749894498947).

The spelling of 405344055443 in words is "four hundred five billion, three hundred forty-four million, fifty-five thousand, four hundred forty-three".