605642121433 has 2 divisors, whose sum is σ = 605642121434. Its totient is φ = 605642121432.

The previous prime is 605642121389. The next prime is 605642121439. The reversal of 605642121433 is 334121246506.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 541619458704 + 64022662729 = 735948^2 + 253027^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-605642121433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 605642121392 and 605642121401.

It is not a weakly prime, because it can be changed into another prime (605642121439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302821060716 + 302821060717.

It is an arithmetic number, because the mean of its divisors is an integer number (302821060717).

Almost surely, 2^605642121433 is an apocalyptic number.

It is an amenable number.

605642121433 is a deficient number, since it is larger than the sum of its proper divisors (1).

605642121433 is an equidigital number, since it uses as much as digits as its factorization.

605642121433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 37.

Adding to 605642121433 its reverse (334121246506), we get a palindrome (939763367939).

The spelling of 605642121433 in words is "six hundred five billion, six hundred forty-two million, one hundred twenty-one thousand, four hundred thirty-three".