456531444689 has 2 divisors, whose sum is σ = 456531444690. Its totient is φ = 456531444688.

The previous prime is 456531444563. The next prime is 456531444847. The reversal of 456531444689 is 986444135654.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 245041830289 + 211489614400 = 495017^2 + 459880^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-456531444689 is a prime.

It is not a weakly prime, because it can be changed into another prime (456531441689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228265722344 + 228265722345.

It is an arithmetic number, because the mean of its divisors is an integer number (228265722345).

Almost surely, 2^456531444689 is an apocalyptic number.

It is an amenable number.

456531444689 is a deficient number, since it is larger than the sum of its proper divisors (1).

456531444689 is an equidigital number, since it uses as much as digits as its factorization.

456531444689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 49766400, while the sum is 59.

The spelling of 456531444689 in words is "four hundred fifty-six billion, five hundred thirty-one million, four hundred forty-four thousand, six hundred eighty-nine".