405501422273 has 2 divisors, whose sum is σ = 405501422274. Its totient is φ = 405501422272.

The previous prime is 405501422203. The next prime is 405501422279. The reversal of 405501422273 is 372224105504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 384117331984 + 21384090289 = 619772^2 + 146233^2 .

It is a cyclic number.

It is not a de Polignac number, because 405501422273 - 2²² = 405497227969 is a prime.

It is not a weakly prime, because it can be changed into another prime (405501422279) 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, 202750711136 + 202750711137.

It is an arithmetic number, because the mean of its divisors is an integer number (202750711137).

Almost surely, 2^405501422273 is an apocalyptic number.

It is an amenable number.

405501422273 is a deficient number, since it is larger than the sum of its proper divisors (1).

405501422273 is an equidigital number, since it uses as much as digits as its factorization.

405501422273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67200, while the sum is 35.

Adding to 405501422273 its reverse (372224105504), we get a palindrome (777725527777).

The spelling of 405501422273 in words is "four hundred five billion, five hundred one million, four hundred twenty-two thousand, two hundred seventy-three".