468824321821 has 2 divisors, whose sum is σ = 468824321822. Its totient is φ = 468824321820.

The previous prime is 468824321761. The next prime is 468824321831. The reversal of 468824321821 is 128123428864.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 353775144100 + 115049177721 = 594790^2 + 339189^2 .

It is a cyclic number.

It is not a de Polignac number, because 468824321821 - 2⁹ = 468824321309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (468824321831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 234412160910 + 234412160911.

It is an arithmetic number, because the mean of its divisors is an integer number (234412160911).

Almost surely, 2^468824321821 is an apocalyptic number.

It is an amenable number.

468824321821 is a deficient number, since it is larger than the sum of its proper divisors (1).

468824321821 is an equidigital number, since it uses as much as digits as its factorization.

468824321821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1179648, while the sum is 49.

The spelling of 468824321821 in words is "four hundred sixty-eight billion, eight hundred twenty-four million, three hundred twenty-one thousand, eight hundred twenty-one".