5456342066519 has 2 divisors, whose sum is σ = 5456342066520. Its totient is φ = 5456342066518.

The previous prime is 5456342066491. The next prime is 5456342066543. The reversal of 5456342066519 is 9156602436545.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5456342066519 - 2¹⁶ = 5456342000983 is a prime.

It is a super-3 number, since 3×5456342066519³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5456342066419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2728171033259 + 2728171033260.

It is an arithmetic number, because the mean of its divisors is an integer number (2728171033260).

Almost surely, 2^{5456342066519} is an apocalyptic number.

5456342066519 is a deficient number, since it is larger than the sum of its proper divisors (1).

5456342066519 is an equidigital number, since it uses as much as digits as its factorization.

5456342066519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328000, while the sum is 56.

The spelling of 5456342066519 in words is "five trillion, four hundred fifty-six billion, three hundred forty-two million, sixty-six thousand, five hundred nineteen".