464553402821 has 2 divisors, whose sum is σ = 464553402822. Its totient is φ = 464553402820.

The previous prime is 464553402637. The next prime is 464553402823. The reversal of 464553402821 is 128204355464.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 463835913025 + 717489796 = 681055^2 + 26786^2 .

It is a cyclic number.

It is not a de Polignac number, because 464553402821 - 2¹⁰ = 464553401797 is a prime.

Together with 464553402823, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (464553402823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232276701410 + 232276701411.

It is an arithmetic number, because the mean of its divisors is an integer number (232276701411).

Almost surely, 2^464553402821 is an apocalyptic number.

It is an amenable number.

464553402821 is a deficient number, since it is larger than the sum of its proper divisors (1).

464553402821 is an equidigital number, since it uses as much as digits as its factorization.

464553402821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 921600, while the sum is 44.

The spelling of 464553402821 in words is "four hundred sixty-four billion, five hundred fifty-three million, four hundred two thousand, eight hundred twenty-one".