452768442989 has 2 divisors, whose sum is σ = 452768442990. Its totient is φ = 452768442988.

The previous prime is 452768442977. The next prime is 452768443003. The reversal of 452768442989 is 989244867254.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 396282840100 + 56485602889 = 629510^2 + 237667^2 .

It is a cyclic number.

It is not a de Polignac number, because 452768442989 - 2⁸ = 452768442733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (452768442689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226384221494 + 226384221495.

It is an arithmetic number, because the mean of its divisors is an integer number (226384221495).

Almost surely, 2^452768442989 is an apocalyptic number.

It is an amenable number.

452768442989 is a deficient number, since it is larger than the sum of its proper divisors (1).

452768442989 is an equidigital number, since it uses as much as digits as its factorization.

452768442989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 278691840, while the sum is 68.

The spelling of 452768442989 in words is "four hundred fifty-two billion, seven hundred sixty-eight million, four hundred forty-two thousand, nine hundred eighty-nine".