452969872781 has 2 divisors, whose sum is σ = 452969872782. Its totient is φ = 452969872780.

The previous prime is 452969872777. The next prime is 452969872783. The reversal of 452969872781 is 187278969254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 425483548681 + 27486324100 = 652291^2 + 165790^2 .

It is a cyclic number.

It is not a de Polignac number, because 452969872781 - 2² = 452969872777 is a prime.

It is a super-2 number, since 2×452969872781² (a number of 24 digits) contains 22 as substring.

Together with 452969872783, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (452969872783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226484936390 + 226484936391.

It is an arithmetic number, because the mean of its divisors is an integer number (226484936391).

Almost surely, 2^452969872781 is an apocalyptic number.

It is an amenable number.

452969872781 is a deficient number, since it is larger than the sum of its proper divisors (1).

452969872781 is an equidigital number, since it uses as much as digits as its factorization.

452969872781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 121927680, while the sum is 68.

The spelling of 452969872781 in words is "four hundred fifty-two billion, nine hundred sixty-nine million, eight hundred seventy-two thousand, seven hundred eighty-one".