923454540689 has 2 divisors, whose sum is σ = 923454540690. Its totient is φ = 923454540688.

The previous prime is 923454540649. The next prime is 923454540703. The reversal of 923454540689 is 986045454329.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 649784312464 + 273670228225 = 806092^2 + 523135^2 .

It is a cyclic number.

It is not a de Polignac number, because 923454540689 - 2³² = 919159573393 is a prime.

It is not a weakly prime, because it can be changed into another prime (923454540649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 461727270344 + 461727270345.

It is an arithmetic number, because the mean of its divisors is an integer number (461727270345).

Almost surely, 2^923454540689 is an apocalyptic number.

It is an amenable number.

923454540689 is a deficient number, since it is larger than the sum of its proper divisors (1).

923454540689 is an equidigital number, since it uses as much as digits as its factorization.

923454540689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37324800, while the sum is 59.

The spelling of 923454540689 in words is "nine hundred twenty-three billion, four hundred fifty-four million, five hundred forty thousand, six hundred eighty-nine".