451332032549 has 2 divisors, whose sum is σ = 451332032550. Its totient is φ = 451332032548.

The previous prime is 451332032509. The next prime is 451332032603. The reversal of 451332032549 is 945230233154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 451026412225 + 305620324 = 671585^2 + 17482^2 .

It is a cyclic number.

It is not a de Polignac number, because 451332032549 - 2¹⁶ = 451331967013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (451332032509) 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, 225666016274 + 225666016275.

It is an arithmetic number, because the mean of its divisors is an integer number (225666016275).

Almost surely, 2^451332032549 is an apocalyptic number.

It is an amenable number.

451332032549 is a deficient number, since it is larger than the sum of its proper divisors (1).

451332032549 is an equidigital number, since it uses as much as digits as its factorization.

451332032549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 451332032549 in words is "four hundred fifty-one billion, three hundred thirty-two million, thirty-two thousand, five hundred forty-nine".