451445042425393 has 2 divisors, whose sum is σ = 451445042425394. Its totient is φ = 451445042425392.

The previous prime is 451445042425379. The next prime is 451445042425451. The reversal of 451445042425393 is 393524240544154.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 227774712130849 + 223670330294544 = 15092207^2 + 14955612^2 .

It is a cyclic number.

It is not a de Polignac number, because 451445042425393 - 2¹⁷ = 451445042294321 is a prime.

It is not a weakly prime, because it can be changed into another prime (451445042425693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225722521212696 + 225722521212697.

It is an arithmetic number, because the mean of its divisors is an integer number (225722521212697).

Almost surely, 2^{451445042425393} is an apocalyptic number.

It is an amenable number.

451445042425393 is a deficient number, since it is larger than the sum of its proper divisors (1).

451445042425393 is an equidigital number, since it uses as much as digits as its factorization.

451445042425393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472000, while the sum is 55.

The spelling of 451445042425393 in words is "four hundred fifty-one trillion, four hundred forty-five billion, forty-two million, four hundred twenty-five thousand, three hundred ninety-three".