523042188481 has 2 divisors, whose sum is σ = 523042188482. Its totient is φ = 523042188480.

The previous prime is 523042188467. The next prime is 523042188497. The reversal of 523042188481 is 184881240325.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 486555076225 + 36487112256 = 697535^2 + 191016^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523042188481 is a prime.

It is a super-2 number, since 2×523042188481² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (523042788481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261521094240 + 261521094241.

It is an arithmetic number, because the mean of its divisors is an integer number (261521094241).

Almost surely, 2^523042188481 is an apocalyptic number.

It is an amenable number.

523042188481 is a deficient number, since it is larger than the sum of its proper divisors (1).

523042188481 is an equidigital number, since it uses as much as digits as its factorization.

523042188481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 491520, while the sum is 46.

The spelling of 523042188481 in words is "five hundred twenty-three billion, forty-two million, one hundred eighty-eight thousand, four hundred eighty-one".