450268342882021 has 2 divisors, whose sum is σ = 450268342882022. Its totient is φ = 450268342882020.

The previous prime is 450268342881979. The next prime is 450268342882067. The reversal of 450268342882021 is 120288243862054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 278146144265796 + 172122198616225 = 16677714^2 + 13119535^2 .

It is a cyclic number.

It is not a de Polignac number, because 450268342882021 - 2²³ = 450268334493413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (450268342885021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225134171441010 + 225134171441011.

It is an arithmetic number, because the mean of its divisors is an integer number (225134171441011).

Almost surely, 2^{450268342882021} is an apocalyptic number.

It is an amenable number.

450268342882021 is a deficient number, since it is larger than the sum of its proper divisors (1).

450268342882021 is an equidigital number, since it uses as much as digits as its factorization.

450268342882021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11796480, while the sum is 55.

The spelling of 450268342882021 in words is "four hundred fifty trillion, two hundred sixty-eight billion, three hundred forty-two million, eight hundred eighty-two thousand, twenty-one".