5408557243517 has 2 divisors, whose sum is σ = 5408557243518. Its totient is φ = 5408557243516.

The previous prime is 5408557243511. The next prime is 5408557243519. The reversal of 5408557243517 is 7153427558045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4622203304761 + 786353938756 = 2149931^2 + 886766^2 .

It is a cyclic number.

It is not a de Polignac number, because 5408557243517 - 2⁴ = 5408557243501 is a prime.

Together with 5408557243519, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5408557243511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2704278621758 + 2704278621759.

It is an arithmetic number, because the mean of its divisors is an integer number (2704278621759).

Almost surely, 2^{5408557243517} is an apocalyptic number.

It is an amenable number.

5408557243517 is a deficient number, since it is larger than the sum of its proper divisors (1).

5408557243517 is an equidigital number, since it uses as much as digits as its factorization.

5408557243517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520000, while the sum is 56.

The spelling of 5408557243517 in words is "five trillion, four hundred eight billion, five hundred fifty-seven million, two hundred forty-three thousand, five hundred seventeen".