426520521060497 has 2 divisors, whose sum is σ = 426520521060498. Its totient is φ = 426520521060496.

The previous prime is 426520521060467. The next prime is 426520521060533. The reversal of 426520521060497 is 794060125025624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 347318424063361 + 79202096997136 = 18636481^2 + 8899556^2 .

It is a cyclic number.

It is not a de Polignac number, because 426520521060497 - 2⁴⁰ = 425421009432721 is a prime.

It is not a weakly prime, because it can be changed into another prime (426520521060467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213260260530248 + 213260260530249.

It is an arithmetic number, because the mean of its divisors is an integer number (213260260530249).

Almost surely, 2^{426520521060497} is an apocalyptic number.

It is an amenable number.

426520521060497 is a deficient number, since it is larger than the sum of its proper divisors (1).

426520521060497 is an equidigital number, since it uses as much as digits as its factorization.

426520521060497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7257600, while the sum is 53.

The spelling of 426520521060497 in words is "four hundred twenty-six trillion, five hundred twenty billion, five hundred twenty-one million, sixty thousand, four hundred ninety-seven".