549939179519 has 2 divisors, whose sum is σ = 549939179520. Its totient is φ = 549939179518.

The previous prime is 549939179513. The next prime is 549939179521. The reversal of 549939179519 is 915971939945.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 549939179519 - 2⁸ = 549939179263 is a prime.

It is a super-2 number, since 2×549939179519² (a number of 24 digits) contains 22 as substring.

Together with 549939179521, 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 (549939179513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274969589759 + 274969589760.

It is an arithmetic number, because the mean of its divisors is an integer number (274969589760).

Almost surely, 2^549939179519 is an apocalyptic number.

549939179519 is a deficient number, since it is larger than the sum of its proper divisors (1).

549939179519 is an equidigital number, since it uses as much as digits as its factorization.

549939179519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124002900, while the sum is 71.

The spelling of 549939179519 in words is "five hundred forty-nine billion, nine hundred thirty-nine million, one hundred seventy-nine thousand, five hundred nineteen".