464243252321 has 2 divisors, whose sum is σ = 464243252322. Its totient is φ = 464243252320.

The previous prime is 464243252293. The next prime is 464243252339. The reversal of 464243252321 is 123252342464.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 240006909025 + 224236343296 = 489905^2 + 473536^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-464243252321 is a prime.

It is not a weakly prime, because it can be changed into another prime (464249252321) 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, 232121626160 + 232121626161.

It is an arithmetic number, because the mean of its divisors is an integer number (232121626161).

Almost surely, 2^464243252321 is an apocalyptic number.

It is an amenable number.

464243252321 is a deficient number, since it is larger than the sum of its proper divisors (1).

464243252321 is an equidigital number, since it uses as much as digits as its factorization.

464243252321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 276480, while the sum is 38.

Adding to 464243252321 its reverse (123252342464), we get a palindrome (587495594785).

The spelling of 464243252321 in words is "four hundred sixty-four billion, two hundred forty-three million, two hundred fifty-two thousand, three hundred twenty-one".