345452420505053 has 2 divisors, whose sum is σ = 345452420505054. Its totient is φ = 345452420505052.

The previous prime is 345452420505047. The next prime is 345452420505067. The reversal of 345452420505053 is 350505024254543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 312082538876164 + 33369881628889 = 17665858^2 + 5776667^2 .

It is an emirp because it is prime and its reverse (350505024254543) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345452420505053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 345452420504989 and 345452420505007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345452420505083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172726210252526 + 172726210252527.

It is an arithmetic number, because the mean of its divisors is an integer number (172726210252527).

Almost surely, 2^{345452420505053} is an apocalyptic number.

It is an amenable number.

345452420505053 is a deficient number, since it is larger than the sum of its proper divisors (1).

345452420505053 is an equidigital number, since it uses as much as digits as its factorization.

345452420505053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200000, while the sum is 47.

Adding to 345452420505053 its reverse (350505024254543), we get a palindrome (695957444759596).

The spelling of 345452420505053 in words is "three hundred forty-five trillion, four hundred fifty-two billion, four hundred twenty million, five hundred five thousand, fifty-three".