517940946433 has 2 divisors, whose sum is σ = 517940946434. Its totient is φ = 517940946432.

The previous prime is 517940946403. The next prime is 517940946469. The reversal of 517940946433 is 334649049715.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 343106577009 + 174834369424 = 585753^2 + 418132^2 .

It is a cyclic number.

It is not a de Polignac number, because 517940946433 - 2¹³ = 517940938241 is a prime.

It is not a weakly prime, because it can be changed into another prime (517940946403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258970473216 + 258970473217.

It is an arithmetic number, because the mean of its divisors is an integer number (258970473217).

Almost surely, 2^517940946433 is an apocalyptic number.

It is an amenable number.

517940946433 is a deficient number, since it is larger than the sum of its proper divisors (1).

517940946433 is an equidigital number, since it uses as much as digits as its factorization.

517940946433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9797760, while the sum is 55.

The spelling of 517940946433 in words is "five hundred seventeen billion, nine hundred forty million, nine hundred forty-six thousand, four hundred thirty-three".