549285809841328 has 80 divisors (see below), whose sum is σ = 1249212422412864. Its totient is φ = 229034014801920.

The previous prime is 549285809841317. The next prime is 549285809841361. The reversal of 549285809841328 is 823148908582945.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77223588 + ... + 84036028.

Almost surely, 2^{549285809841328} is an apocalyptic number.

It is an amenable number.

549285809841328 is an abundant number, since it is smaller than the sum of its proper divisors (699926612571536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

549285809841328 is a wasteful number, since it uses less digits than its factorization.

549285809841328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6831950 (or 6831944 counting only the distinct ones).

The product of its (nonzero) digits is 1592524800, while the sum is 76.

The spelling of 549285809841328 in words is "five hundred forty-nine trillion, two hundred eighty-five billion, eight hundred nine million, eight hundred forty-one thousand, three hundred twenty-eight".