549888693089 has 2 divisors, whose sum is σ = 549888693090. Its totient is φ = 549888693088.

The previous prime is 549888693077. The next prime is 549888693139. The reversal of 549888693089 is 980396888945.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 394252131025 + 155636562064 = 627895^2 + 394508^2 .

It is a cyclic number.

It is not a de Polignac number, because 549888693089 - 2⁴ = 549888693073 is a prime.

It is not a weakly prime, because it can be changed into another prime (549858693089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274944346544 + 274944346545.

It is an arithmetic number, because the mean of its divisors is an integer number (274944346545).

Almost surely, 2^549888693089 is an apocalyptic number.

It is an amenable number.

549888693089 is a deficient number, since it is larger than the sum of its proper divisors (1).

549888693089 is an equidigital number, since it uses as much as digits as its factorization.

549888693089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1074954240, while the sum is 77.

The spelling of 549888693089 in words is "five hundred forty-nine billion, eight hundred eighty-eight million, six hundred ninety-three thousand, eighty-nine".