523424340324973 has 2 divisors, whose sum is σ = 523424340324974. Its totient is φ = 523424340324972.

The previous prime is 523424340324943. The next prime is 523424340325049. The reversal of 523424340324973 is 379423043424325.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 493007935103524 + 30416405221449 = 22203782^2 + 5515107^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523424340324973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (523424340324923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261712170162486 + 261712170162487.

It is an arithmetic number, because the mean of its divisors is an integer number (261712170162487).

Almost surely, 2^{523424340324973} is an apocalyptic number.

It is an amenable number.

523424340324973 is a deficient number, since it is larger than the sum of its proper divisors (1).

523424340324973 is an equidigital number, since it uses as much as digits as its factorization.

523424340324973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52254720, while the sum is 55.

The spelling of 523424340324973 in words is "five hundred twenty-three trillion, four hundred twenty-four billion, three hundred forty million, three hundred twenty-four thousand, nine hundred seventy-three".