445134242431523 has 2 divisors, whose sum is σ = 445134242431524. Its totient is φ = 445134242431522.

The previous prime is 445134242431517. The next prime is 445134242431577. The reversal of 445134242431523 is 325134242431544.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 445134242431523 - 2⁴ = 445134242431507 is a prime.

It is not a weakly prime, because it can be changed into another prime (445134242431583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222567121215761 + 222567121215762.

It is an arithmetic number, because the mean of its divisors is an integer number (222567121215762).

Almost surely, 2^{445134242431523} is an apocalyptic number.

445134242431523 is a deficient number, since it is larger than the sum of its proper divisors (1).

445134242431523 is an equidigital number, since it uses as much as digits as its factorization.

445134242431523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5529600, while the sum is 47.

The spelling of 445134242431523 in words is "four hundred forty-five trillion, one hundred thirty-four billion, two hundred forty-two million, four hundred thirty-one thousand, five hundred twenty-three".