455723243681 has 2 divisors, whose sum is σ = 455723243682. Its totient is φ = 455723243680.

The previous prime is 455723243653. The next prime is 455723243683. The reversal of 455723243681 is 186342327554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 412015069456 + 43708174225 = 641884^2 + 209065^2 .

It is a cyclic number.

It is not a de Polignac number, because 455723243681 - 2¹⁰ = 455723242657 is a prime.

It is a super-2 number, since 2×455723243681² (a number of 24 digits) contains 22 as substring.

Together with 455723243683, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (455723243683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227861621840 + 227861621841.

It is an arithmetic number, because the mean of its divisors is an integer number (227861621841).

Almost surely, 2^455723243681 is an apocalyptic number.

It is an amenable number.

455723243681 is a deficient number, since it is larger than the sum of its proper divisors (1).

455723243681 is an equidigital number, since it uses as much as digits as its factorization.

455723243681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4838400, while the sum is 50.

The spelling of 455723243681 in words is "four hundred fifty-five billion, seven hundred twenty-three million, two hundred forty-three thousand, six hundred eighty-one".