426452892221 has 2 divisors, whose sum is σ = 426452892222. Its totient is φ = 426452892220.

The previous prime is 426452892209. The next prime is 426452892223. The reversal of 426452892221 is 122298254624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 360858511225 + 65594380996 = 600715^2 + 256114^2 .

It is a cyclic number.

It is not a de Polignac number, because 426452892221 - 2¹⁰ = 426452891197 is a prime.

It is a Sophie Germain prime.

Together with 426452892223, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426452892223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213226446110 + 213226446111.

It is an arithmetic number, because the mean of its divisors is an integer number (213226446111).

Almost surely, 2^426452892221 is an apocalyptic number.

It is an amenable number.

426452892221 is a deficient number, since it is larger than the sum of its proper divisors (1).

426452892221 is an equidigital number, since it uses as much as digits as its factorization.

426452892221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1105920, while the sum is 47.

The spelling of 426452892221 in words is "four hundred twenty-six billion, four hundred fifty-two million, eight hundred ninety-two thousand, two hundred twenty-one".