421770315353 has 2 divisors, whose sum is σ = 421770315354. Its totient is φ = 421770315352.

The previous prime is 421770315349. The next prime is 421770315403. The reversal of 421770315353 is 353513077124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 396644261209 + 25126054144 = 629797^2 + 158512^2 .

It is a cyclic number.

It is not a de Polignac number, because 421770315353 - 2² = 421770315349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 421770315353.

It is not a weakly prime, because it can be changed into another prime (421770335353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210885157676 + 210885157677.

It is an arithmetic number, because the mean of its divisors is an integer number (210885157677).

Almost surely, 2^421770315353 is an apocalyptic number.

It is an amenable number.

421770315353 is a deficient number, since it is larger than the sum of its proper divisors (1).

421770315353 is an equidigital number, since it uses as much as digits as its factorization.

421770315353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 264600, while the sum is 41.

The spelling of 421770315353 in words is "four hundred twenty-one billion, seven hundred seventy million, three hundred fifteen thousand, three hundred fifty-three".