451466767261 has 2 divisors, whose sum is σ = 451466767262. Its totient is φ = 451466767260.

The previous prime is 451466767259. The next prime is 451466767361. The reversal of 451466767261 is 162767664154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 323163825625 + 128302941636 = 568475^2 + 358194^2 .

It is a cyclic number.

It is not a de Polignac number, because 451466767261 - 2¹ = 451466767259 is a prime.

Together with 451466767259, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (451466767061) 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, 225733383630 + 225733383631.

It is an arithmetic number, because the mean of its divisors is an integer number (225733383631).

Almost surely, 2^451466767261 is an apocalyptic number.

It is an amenable number.

451466767261 is a deficient number, since it is larger than the sum of its proper divisors (1).

451466767261 is an equidigital number, since it uses as much as digits as its factorization.

451466767261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10160640, while the sum is 55.

The spelling of 451466767261 in words is "four hundred fifty-one billion, four hundred sixty-six million, seven hundred sixty-seven thousand, two hundred sixty-one".