523491458461 has 2 divisors, whose sum is σ = 523491458462. Its totient is φ = 523491458460.

The previous prime is 523491458387. The next prime is 523491458507. The reversal of 523491458461 is 164854194325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 318540587236 + 204950871225 = 564394^2 + 452715^2 .

It is a cyclic number.

It is not a de Polignac number, because 523491458461 - 2¹⁵ = 523491425693 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 523491458399 and 523491458408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (523411458461) 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, 261745729230 + 261745729231.

It is an arithmetic number, because the mean of its divisors is an integer number (261745729231).

Almost surely, 2^523491458461 is an apocalyptic number.

It is an amenable number.

523491458461 is a deficient number, since it is larger than the sum of its proper divisors (1).

523491458461 is an equidigital number, since it uses as much as digits as its factorization.

523491458461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4147200, while the sum is 52.

The spelling of 523491458461 in words is "five hundred twenty-three billion, four hundred ninety-one million, four hundred fifty-eight thousand, four hundred sixty-one".